Year	current US$
1976	-809680013.7356431
1977	-1043833727.6435235
1978	-1206707566.4621677
1979	-1701444729.6833847
1980	-1756146681.2117143
1981	-2406841931.647263
1982	-2512113750.0992928
1983	-2240834639.293377
1984	-2010065935.7808902
1985	-1827557808.0456128
1986	-1615585514.021362
1987	-1664898850.3777413
1988	-1332916546.439678
1989	-774484141.3494473
1990	-1238790318.692445
1991	-976697323.7024614
1992	-1655884369.0517168
1993	-1671546984.8495564
1994	-1410131673.1071992
1995	-1422231735.1598175
1996	-1752750211.5655854
1997	-1611613399.1537378
1998	-1539901410.4372356
1999	-1454664880.1128352
2000	-2256840620.592384
2001	-2245469919.589045
2002	-1839492242.5952046
2003	-2137235543.0183358
2004	-3451198871.650211
2005	-5224400564.174893
2006	-5119181946.403385
2007	-6420592383.638928
2008	-6528414030.805997
2009	-5398591549.295774
2010	-5488732394.366198
2011	-7557746478.8732395
2012	-8669014084.507042
2013	-9943661971.830986
2014	-9459154929.577465
2015	-8592957746.478874
2016	-7950704225.352113
2017	-8594366197.1831
2018	-7680281690.140845
2019	-5553521126.760564
2020	-7788732394.366198
2021	-9201408450.704226