Year	constant 2015 US$
1995	33074331619.650364
1996	34522239196.09008
1997	29762593476.019653
1998	31219445495.05669
1999	28723886436.402763
2000	29740587121.596207
2001	31615920018.94965
2002	34050367410.009792
2003	35691953244.60264
2004	37864499549.842125
2005	40206234180.38573
2006	41837038038.4739
2007	42496609028.610146
2008	46280792981.514496
2009	45392599067.67992
2010	46611054520.993416
2011	47059369210.34558
2012	48305361386.70752
2013	47620528198.7553
2014	48724419359.84721
2015	49246152144.315865
2016	50713213766.187195
2017	52580862037.285736
2018	53394917602.72083
2019	55769818157.92808
2020	53155987916.85579
2021	56889970237.38069
2022	59584344054.07416
2023	60607502362.223816