Year	current US$
1970	29489696406.44362
1971	29714750312.10986
1972	33315936254.980076
1973	46257927598.80439
1974	59412390592.43823
1975	54140130486.358246
1976	59769799953.477554
1977	62961579986.83344
1978	75260387862.19482
1979	96141172220.92752
1980	127750612706.30792
1981	106354895247.82832
1982	101410134574.08733
1983	98569180265.17084
1984	102079206524.13489
1985	104782755298.65126
1986	139271761267.6971
1987	178291692560.50195
1988	201316816423.6834
1989	207359005080.4403
1990	266467621202.3271
1991	276649091618.5422
1992	284729505106.0487
1993	203113919035.3144
1994	208935198126.80115
1995	235429811006.7752
1996	254021207177.81403
1997	242187585266.03
1998	250638340582.1345
1999	253409026545.71484
2000	239249269692.86325
2001	243455302395.31528
2002	275414895089.2162
2003	334130414106.1562
2004	384115169513.3215
2005	393372884310.6613
2006	428075073702.35236
2007	492327789851.7663
2008	524569352470.4686
2009	429178735558.2028
2010	439604995233.33417
2011	469741468856.03204
2012	371259600962.6954
2013	361822252095.0206
2014	366659573966.6654
2015	314198517444.53107
2016	329633090436.421
2017	354184081629.7653
2018	387581948199.686
2019	366855043338.82294
2020	335864821789.57294
2021	468415665801.9305
2022	477245644386.3832
2023	471648834659.81226