Year	current US$
1974	6070647767.26976
1975	7995994777.91288
1976	9917869048.78255
1977	10102606072.8963
1978	10529618690.4474
1979	16938559370.0037
1980	9658062801.89145
1981	12612876115.2177
1982	11032325259.337
1983	8649869103.53406
1984	8771020351.37868
1985	13475230606.5746
1986	17889290124.9396
1987	6864287697.88958
1988	10576397170.6509
1989	11014737396.6069
1990	9879025674.22278
1991	4618977476.44658
1992	4716025477.35551
1993	6370381937.18161
1994	2516941170.09349
1995	6580800123.07055
1996	11341995966.7462
1997	9887485973.70559
1998	28375631698.2906
1999	14515089684.6241
2000	15269425277.5919
2001	7705137826.37579
2002	10557348952.8502
2003	11523146820.9633
2004	24265383117.3743
2005	39397801733.0977
2006	50366417269.5772
2007	56777051803.7663
2008	69659795667.6668
2009	37150960303.1497
2010	52844424814.9584
2011	72815918406.0574
2012	78166697404.6622
2013	94020244524.9633
2014	97257097680.232
2015	91113865410.6299
2016	86290548470.3962
2017	92810352900.1139
2018	106683482967.117
2019	81272338483.9255
2020	83289009626.6599
2021	124502001479.673