Year	current US$
1965	460000.00834465
1966	730000.019073486
1967	759999.990463257
1968	1309999.9427795399
1969	2480000.01907349
1970	3240000.00953674
1971	4150000.09536743
1972	4630000.11444092
1973	7400000.09536743
1974	18170000.0762939
1975	23709999.084472697
1976	19590000.1525879
1977	35009998.3215332
1978	37590000.1525879
1979	39659999.8474121
1980	32169998.168945298
1981	32759998.321533203
1982	39840000.1525879
1983	40400001.5258789
1984	31610000.6103516
1985	37020000.4577637
1986	54900001.5258789
1987	49189998.626709
1988	77809997.55859381
1989	78720001.2207031
1990	78550003.0517578
1991	89139999.3896484
1992	94779998.7792969
1993	80860000.6103516
1994	76550003.0517578
1995	59569999.6948242
1996	91199996.9482422
1997	63959999.0844727
1998	69629997.253418
1999	80849998.4741211
2000	68750000
2001	66629997.253418
2002	69889999.3896484
2003	85480003.3569336
2004	93930000.3051758
2005	84730003.3569336
2006	95309997.55859381
2007	90069999.6948242
2008	119239997.86377
2009	106849998.47412099
2010	129389999.389648
2011	126160003.662109
2012	111190002.441406
2013	88629997.253418
2014	70709999.0844727
2015	41369998.9318848
2016	54279998.779296905
2017	52889999.3896484
2018	54319999.6948242
2019	44610000.6103516
2020	45330001.8310547
2021	50750000
2022	33689998.626709