Year	current US$
1975	36811131474.27039
1976	36204432395.72657
1977	38974128628.55647
1978	45994408977.32086
1979	55828510949.46937
1980	75086996639.50237
1981	79659899790.36632
1982	68763407708.4433
1983	60737592148.518906
1984	60024286827.03348
1985	52805580977.15626
1986	58503353729.95304
1987	67633801433.05733
1988	73016305515.23328
1989	74770323017.51314
1990	80871613481.7737
1991	84307729747.19379
1992	82033895108.87923
1993	80354425244.17441
1994	87273186160.5081
1995	105837346517.83246
1996	110283057565.27342
1997	114334144241.65778
1998	113525407046.50111
1999	108050776843.88968
2000	113099804678.83006
2001	108946357477.87865
2002	117836148281.52309
2003	145555368655.15903
2004	182651932237.84158
2005	218840559466.20178
2006	255168629866.1238
2007	318461534186.7787
2008	387689012900.0122
2009	344886996171.0366
2010	392521960092.81964
2011	461491335158.337
2012	483542496985.92694
2013	502824701934.97845
2014	496960099982.71735
2015	431411198379.4446
2016	381963657991.4691
2017	411240701745.8778
2018	456433248292.88983
2019	437074929061.99536
2020	382312917900.97473
2021	471931379024.742
2022	564372155248.758
2023	556920725014.2601