Year	constant 2015 US$
1970	21902219389.99061
1971	22611343473.288654
1972	23775476574.006233
1973	25482159259.213654
1974	25900643112.27381
1975	26114136692.200768
1976	26853174352.542953
1977	28671011367.67186
1978	31283307321.54256
1979	32670380394.937874
1980	32810504106.43358
1981	33367853483.371468
1982	31012819173.937096
1983	31277008616.862484
1984	31905522150.60506
1985	33370372077.633186
1986	34042024582.076157
1987	35173820929.596466
1988	36751483908.31756
1989	39147148579.80662
1990	39700510367.4156
1991	40417054872.92615
1992	41583787562.34646
1993	42792168037.14216
1994	44659623578.25271
1995	46198911834.625755
1996	49372083197.40076
1997	52765938893.14685
1998	56953755356.34685
1999	62355644095.47145
2000	68838011991.89919
2001	72097017490.91872
2002	74718382603.15738
2003	76804370022.23122
2004	79736312201.83942
2005	85336600707.52692
2006	90787254757.22028
2007	96846890475.72964
2008	97031964992.47612
2009	91866095163.98393
2010	92143642032.59956
2011	90901081903.69527
2012	90292302166.22534
2013	90588137135.81715
2014	93036551378.66519
2015	96196073513.85971
2016	100830210399.03276
2017	103437797580.19565
2018	107375974752.51793
2019	110024980049.88785
2020	98150521522.67262
2021	106449377266.55426
2022	116404984287.02652
2023	120018288318.38356