Year	current US$
1970	33675329929.3251
1971	36786876925.4997
1972	43025778074.3913
1973	53011192826.9819
1974	73424316886.6488
1975	80591133645.0043
1976	87080114099.9951
1977	89933331346.4662
1978	96715323585.7822
1979	107814184106.416
1980	120077547710.69
1981	145180215626.308
1982	155762758310.802
1983	144405147239.959
1984	156959483067.543
1985	144346158180.28
1986	145045589826.517
1987	150563382000.556
1988	189395434026.034
1989	238171909979.293
1990	242314303076.364
1991	252912262623.64
1992	252921267527.663
1993	245924421912.346
1994	257138368466.784
1995	290203526005.273
1996	318181445794.347
1997	345543452881.81
1998	317886063632.724
1999	310281506662.096
2000	328524176021.96
2001	301315373126.931
2002	315068295181.881
2003	373377605944.469
2004	488840001504.865
2005	543136014274.888
2006	579748210102.762
2007	653617418986.375
2008	809013851568.115
2009	726295801922.976
2010	890847988171.64
2011	1080433607020.2
2012	1218644184896.03
2013	1245948271944.58
2014	1144038843407.43
2015	1060111764468.07
2016	945324748053.848
2017	1034587678563.71
2018	1103478989575.36
2019	1067378884842.85
2020	1026904727925.07
2021	1174103054110.46