Year	current US$
1980	354344533.73185694
1981	268139365.10625657
1982	220649079.6597311
1983	176743043.6273711
1984	205685377.17962435
1985	232873702.0777403
1986	285767539.09874636
1987	215561027.61646563
1988	218297950.7237835
1989	161488529.6026346
1990	78165221.19588408
1991	128762000.7515594
1992	114120178.32612775
1993	129528043.97528821
1994	140662716.63963118
1995	197191205.10711762
1996	444741324.0219483
1997	441413545.2923961
1998	470418518.7582926
1999	468742222.50428385
2000	377833683.2673465
2001	285378327.0509421
2002	503927267.3327986
2003	560039401.081836
2004	421573384.45611113
2005	497181328.6564556
2006	82754820.23402964
2007	205588616.05221665
2008	296909627.48634905
2009	417895302.7412133
2010	442333748.2277881
2011	597064642.1932216
2012	628775263.1100931
2013	752461363.4984888
2014	733092562.2879895
2015	886900004.5018582
2016	865597450.3339813
2017	790089999.643588
2018	702840508.8267869
2019	325732019.32223976
2020	72601021.16138245
2021	167101818.289174
2022	596738051.126718