| Singapore Office Space: Potential Supply: Planned: Written Permission (sq m th) | 44.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: Planned: Provisional Permission (sq m th) | 111.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: Planned: Others (sq m th) | 117.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: Private Sector (PR) (sq m th) | 819.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PR: Under Construction (sq m th) | 612.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PR: Planned (sq m th) | 207.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PR: Planned: Written Permission (sq m th) | 44.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PR: Planned: Provisional Permission (sq m th) | 46.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PR: Planned: Others (sq m th) | 117.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: Public Sector (PU) (sq m th) | 89.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PU: Under Construction (sq m th) | 24.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PU: Planned (sq m th) | 65.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PU: Planned: Written Permission (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PU: Planned: Provisional Permission (sq m th) | 65.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Office Space: Potential Supply: PU: Planned: Others (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply (sq m th) | 424.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Under Construction (sq m th) | 328.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Planned (sq m th) | 96.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Planned: Written Permission (sq m th) | 19.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Planned: Provisional Permission (sq m th) | 40.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Planned: Others (sq m th) | 37.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Private Sector (PR) (sq m th) | 351.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PR: Under Construction (sq m th) | 282.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PR: Planned (sq m th) | 69.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PR: Planned: Written Permission (sq m th) | 19.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PR: Planned: Provisional Permission (sq m th) | 13.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PR: Planned: Others (sq m th) | 37.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: Public Sector (PU) (sq m th) | 73.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PU: Under Construction (sq m th) | 46.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PU: Planned (sq m th) | 27.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PU: Planned: Written Permission (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PU: Planned: Provisional Permission (sq m th) | 27.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Shop Space: Potential Supply: PU: Planned: Others (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply (sq m th) | 3,683.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Under Construction (sq m th) | 2,366.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Planned (sq m th) | 1,317.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Planned: Written Permission (sq m th) | 421.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Planned: Provisional Permission (sq m th) | 613.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Planned: Others (sq m th) | 283.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Private Sector (PR) (sq m th) | 2,272.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PR: Under Construction (sq m th) | 1,547.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PR: Planned (sq m th) | 725.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PR: Planned: Written Permission (sq m th) | 273.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PR: Planned: Provisional Permission (sq m th) | 169.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PR: Planned: Others (sq m th) | 283.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: Public Sector (PU) (sq m th) | 1,411.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PU: Under Construction (sq m th) | 819.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PU: Planned (sq m th) | 592.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PU: Planned: Written Permission (sq m th) | 148.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PU: Planned: Provisional Permission (sq m th) | 444.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Factory Space: Potential Supply: PU: Planned: Others (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply (sq m th) | 852.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Under Construction (sq m th) | 715.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Planned (sq m th) | 137.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Planned: Written Permission (sq m th) | 119.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Planned: Provisional Permission (sq m th) | 15.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Planned: Others (sq m th) | 2.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Private Sector (PR) (sq m th) | 702.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PR: Under Construction (sq m th) | 565.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PR: Planned (sq m th) | 137.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PR: Planned: Written Permission (sq m th) | 119.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PR: Planned: Prov Permission (sq m th) | 15.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PR: Planned: Others (sq m th) | 2.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: Public Sector (PU) (sq m th) | 150.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PU: Under Construction (sq m th) | 150.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PU: Planned (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PU: Planned: Written Permission (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PU: Planned: Provision Permission (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Warehouse Space: Potential Supply: PU: Planned: Others (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1991 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Construction Progress Payments: BCA (SGD mn) | 2,105.00
            
                                            May 2018 | monthly | Jan 1981 - May 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Construction Progress Payments: BCA: Public (SGD mn) | 1,150.00
            
                                            May 2018 | monthly | Jan 1981 - May 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Construction Progress Payments: BCA: Private (SGD mn) | 955.00
            
                                            May 2018 | monthly | Jan 1981 - May 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Construction Contracts Awarded: BCA (SGD mn) | 2,097.70
            
                                            May 2018 | monthly | Jan 1981 - May 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Construction Contracts Awarded: BCA: Public (SGD mn) | 1,838.08
            
                                            May 2018 | monthly | Jan 1981 - May 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Construction Contracts Awarded: BCA: Private (SGD mn) | 259.62
            
                                            May 2018 | monthly | Jan 1981 - May 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Office Space (sq m th) | 70.30
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Office Space: Private (sq m th) | 70.30
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Office Space: Public (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Shop Space (sq m th) | 0.90
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Shop Space: Private (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Shop Space: Public (sq m th) | 0.90
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Factory Space (sq m th) | 73.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Factory Space Private (sq m th) | 73.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Factory Space Public (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Warehouse Space (sq m th) | 193.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Warehouse Space Private (sq m th) | 193.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Written Permission: Gross Floor Area: Warehouse Space Public (sq m th) | 0.00
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Office Space (sq m th) | 70.300
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Office Space: Private (sq m th) | 70.300
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Shop Space (sq m th) | 0.000
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Shop Space: Private (sq m th) | 0.000
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Factory Space (sq m th) | 103.400
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Factory Space Private (sq m th) | 103.400
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Warehouse Space (sq m th) | 31.200
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Plan Approval: Gross Floor Area: Warehouse Space Private (sq m th) | 31.200
            
                                            Mar 2018 | quarterly | Mar 1998 - Mar 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Commenced: Gross Floor Area: Office Space (sq m th) | 72.100
            
                                            Dec 2018 | quarterly | Mar 1998 - Dec 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Commenced: Gross Floor Area: Office Space: Private (sq m th) | 19.100
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Commenced: Gross Floor Area: Office Space: Public (sq m th) | 0.000
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Commenced: Gross Floor Area: Shop Space (sq m th) | 0.100
            
                                            Dec 2018 | quarterly | Mar 1998 - Dec 2018 | 
                                
                            
                                
                                    
                                        
                                            
                                            
                                            | Singapore Bldg Commenced: Gross Floor Area: Shop Space: Private (sq m th) | 6.200
            
                                            Jun 2018 | quarterly | Mar 1998 - Jun 2018 |