Year	current US$
1975	75996504.1084518
1976	64400016.1740641
1977	73994043.3496545
1978	84042035.6092411
1979	131778063.32681699
1980	190549712.36199248
1981	186796748.7089316
1982	159469987.41452038
1983	185609631.90736
1984	167671342.6568598
1985	111638663.5744214
1986	131655678.37234938
1987	175467767.6253236
1988	211310642.7775538
1989	206612202.5937784
1990	371251106.913637
1991	378668583.78114474
1992	355354370.8303216
1993	321822477.6368867
1994	306744410.01614547
1995	439938340.3353759
1996	343897523.11084694
1997	438541437.4528066
1998	519610116.7094195
1999	515072754.64829683
2000	538174037.8820417
2001	361076108.8206343
2002	338213726.4843579
2003	450553572.6311534
2004	560970919.2912691
2005	576774710.5096006
2006	580102910.6563988
2007	723827966.04006
2008	550056471.7341398
2009	633005446.154345
2010	823273567.1966621
2011	934383235.707722
2012	941521905.366906
2013	978518190.838906
2014	1147046486.6286385
2015	1043717577.3403708
2016	950376591.1412028
2017	1074689998.9826076
2018	1159216722.106666
2019	1310886297.8082976
2020	1259939115.2231257
2021	1178024787.2385206
2022	940627373.7981292