Year	current US$
1975	204581294.1179353
1976	221571149.660822
1977	245458333.4356078
1978	243875000.1016147
1979	284000000.1183337
1980	383416666.82642287
1981	386958333.4945653
1982	434750000.1811462
1983	230250000.09593758
1984	248499999.9999997
1985	245591836.7346937
1986	258055555.5555551
1987	195944444.4444441
1988	259902439.0243901
1989	267505882.3529408
1990	321858823.5294125
1991	397082352.94117665
1992	444235294.1176472
1993	343163301.7281818
1994	317303371.41864586
1995	330727559.4390357
1996	447272365.4569978
1997	535360237.9307742
1998	573916087.7743744
1999	605200000
2000	543200028.8210365
2001	566700030.2412065
2002	598800000
2003	671900000
2004	837600000
2005	882900000
2006	801500000
2007	909900000
2008	918300000
2009	758400000
2010	868800000
2011	1104504027.2646658
2012	1286746788.4437566
2013	1231657892.1332338
2014	1357891986.6224232
2015	1113689722.5332637
2016	942839453.0508221
2017	965780141.5816767
2018	799647443.9001764
2019	784750868.4212166
2020	420931973.795616
2021	444062388.50438404
2022	882920175.3073953