Year	current US$
1975	36811131474.27041
1976	36204432395.72658
1977	38974128628.55648
1978	45994408977.32087
1979	55828510949.46937
1980	75086996639.50237
1981	79659899790.36629
1982	68763407708.44327
1983	60737592148.51889
1984	60024286827.03347
1985	52805580977.15625
1986	58503353729.95303
1987	67633801433.057304
1988	73016305515.23325
1989	74770323017.5131
1990	80871613481.77367
1991	84307729747.19377
1992	82033895108.87923
1993	80354425244.17441
1994	87273186160.50812
1995	105837346517.83247
1996	110283057565.2734
1997	114334144241.65779
1998	113525407046.50113
1999	108050776843.88968
2000	113099804678.83002
2001	108946357477.87865
2002	117836148281.52309
2003	145555368655.15906
2004	182651932237.84164
2005	218840559466.20187
2006	255168629866.12393
2007	318461534186.7788
2008	387689012900.01227
2009	344886996171.0368
2010	392521960092.8197
2011	461491335158.3371
2012	483542496985.927
2013	502824701934.9785
2014	496960099982.7175
2015	431411198379.4447
2016	381963657991.46924
2017	411240701745.8778
2018	456433248292.89
2019	437074929061.9955
2020	382312917900.97485
2021	471931379024.7421
2022	564372155248.7584
2023	556920725014.2606