Year	current US$
1966	6400000.09536743
1967	9699999.80926514
1968	9699999.80926514
1969	10300000.1907349
1970	10899999.6185303
1971	10199999.8092651
1972	13109999.6566772
1973	19420000.0762939
1974	28319999.6948242
1975	34090000.1525879
1976	28079999.9237061
1977	32599998.4741211
1978	27909999.8474121
1979	16979999.5422363
1980	24799999.237060502
1981	29379999.1607666
1982	39139999.3896484
1983	34799999.237060495
1984	37049999.237060495
1985	36540000.9155273
1986	40630001.0681152
1987	46090000.1525879
1988	41209999.0844727
1989	39409999.8474121
1990	55759998.3215332
1991	46220001.220703095
1992	40569999.6948242
1993	44459999.0844727
1994	54659999.8474121
1995	42349998.4741211
1996	46909999.8474121
1997	46130001.0681152
1998	39779998.779296905
1999	41439998.626709
2000	20620000.8392334
2001	21870000.8392334
2002	26299999.237060502
2003	22809999.4659424
2004	24510000.2288818
2005	35119998.9318848
2006	71610000.6103516
2007	56700000.762939505
2008	51229999.5422363
2009	41970001.220703095
2010	46220001.220703095
2011	43959999.0844727
2012	40439998.626709
2013	42400001.5258789
2014	40799999.237060495
2015	56290000.9155273
2016	49060001.373291
2017	41290000.9155273
2018	44529998.779296905
2019	36360000.6103516
2020	37319999.6948242
2021	10039999.961853001
2022	12649999.6185303