Year	current US$
1970	32750000.122934595
1971	30889999.92050232
1972	36190000.46886506
1973	57349999.7276813
1974	76560000.3097206
1975	95739999.26447876
1976	101130000.71421269
1977	131599997.6098537
1978	189999999.84167522
1979	225179999.49306256
1980	227359995.97236514
1981	175600000.36284328
1982	192249997.7443367
1983	203380002.2024661
1984	190940000.97736722
1985	207649998.8883735
1986	334739999.54201275
1987	390390000.3992023
1988	409479995.60832965
1989	436350000.86762017
1990	487420000.04649174
1991	505519995.1101092
1992	519429995.3449517
1993	508390001.1312216
1994	550230002.5261939
1995	615650001.9319357
1996	788730001.4458597
1997	727169999.7670949
1998	769809999.5777011
1999	790559996.4912982
2000	722899999.6278436
2001	771589998.7351149
2002	734849998.4126538
2003	734360004.922375
2004	893179998.5002725
2005	980680007.0125608
2006	1105899987.615645
2007	1233919991.9048693
2008	1332189997.2092366
2009	1307460003.5231555
2010	1351420003.1962235
2011	1294889994.833618
2012	1077620013.8963757
2013	923739991.9182062
2014	940060004.3646991
2015	677799996.9236552
2016	669129999.2240964
2017	716189997.7680295
2018	726800005.7600437
2019	722339999.8974056
2020	684240003.9248166
2021	888240003.2617154
2022	799449997.2444024