Year	current US$
1970	28951092127.496696
1971	25751115275.138584
1972	28330376878.88568
1973	29012698551.948902
1974	37993070689.090805
1975	46810211378.80183
1976	56638848892.35703
1977	58271796402.930016
1978	66055268022.629974
1979	69474583391.98842
1980	95192315000.34987
1981	212181377458.2368
1982	196613426576.16122
1983	147298848621.64984
1984	125328796222.399
1985	123698305495.29439
1986	113558537458.37625
1987	112904228947.28275
1988	118406858852.08803
1989	107633351657.4319
1990	115392225100.13159
1991	119937812633.5975
1992	119469080123.17052
1993	104928265244.65881
1994	107140173707.4004
1995	127761109977.75407
1996	141740430805.41263
1997	145204823514.95322
1998	145612545518.17224
1999	153687422779.02258
2000	163516223932.9641
2001	167131602903.6322
2002	187459222638.53223
2003	210299781109.3439
2004	254236197374.12613
2005	299717543106.1159
2006	391100153502.52716
2007	447858549690.80707
2008	524054509315.16284
2009	511239304853.5929
2010	587042686346.3507
2011	667501706927.1288
2012	748200203028.7695
2013	824575493271.5444
2014	917067052390.323
2015	887483281207.1969
2016	864394943239.7836
2017	840128050132.4379
2018	903509739875.3832
2019	899782866622.5192
2020	866676168797.8179
2021	934666309764.3424