Year	current US$
1970	13083443930.9978
1971	14726479841.2034
1972	16314291906.7282
1973	18819815627.3243
1974	23377598636.8065
1975	25790880825.8227
1976	30222370681.6081
1977	31066466148.4253
1978	32358940249.5084
1979	36367429034.592
1980	42357603242.5089
1981	47971650238.3327
1982	52313409612.4976
1983	54800799790.0088
1984	55355183993.4174
1985	55946248842.0451
1986	58188496454.2894
1987	64457647229.9525
1988	74536239042.5279
1989	83949917813.8111
1990	90998757563.2508
1991	93528695911.631
1992	91753649453.2591
1993	88213902304.1663
1994	87812387366.629
1995	91113065844.4852
1996	95689077389.1616
1997	99965527021.9471
1998	99730087164.4
1999	104276410378.176
2000	111191034716.86
2001	113366976179.173
2002	116921508992.756
2003	132915036691.282
2004	148656407724.575
2005	168584384419.221
2006	193330045554.043
2007	219295084879.032
2008	240528439592
2009	234703000669.722
2010	261230317526.539
2011	283101026329.112
2012	294295597037.715
2013	299937013895.681
2014	292562730795.242
2015	267693826366.987
2016	266356828966.765
2017	273740031893.45
2018	284995435247.091
2019	289156081663.809
2020	291985675519.227
2021	325766795862.388