Year	current US$
1964	5900000.09536743
1965	7800000.19073486
1966	5000000
1967	7900000.09536743
1968	10100000.3814697
1969	11300000.1907349
1970	5699999.80926514
1971	8300000.19073486
1972	16950000.762939498
1973	17770000.4577637
1974	20840000.1525879
1975	23780000.6866455
1976	23069999.6948242
1977	25100000.3814697
1978	32409999.847412102
1979	30530000.6866455
1980	44599998.4741211
1981	52279998.779296905
1982	28309999.4659424
1983	27879999.1607666
1984	129899993.896484
1985	120930000.30517599
1986	66610000.61035161
1987	65190002.44140631
1988	77559997.55859381
1989	108160003.662109
1990	129139999.389648
1991	92449996.9482422
1992	89660003.6621094
1993	80160003.6621094
1994	90730003.3569336
1995	81699996.9482422
1996	82300003.0517578
1997	63169998.1689453
1998	59689998.626709
1999	58240001.6784668
2000	98099998.4741211
2001	60819999.6948242
2002	63569999.6948242
2003	69889999.3896484
2004	81519996.6430664
2005	83610000.6103516
2006	81620002.746582
2007	214020004.272461
2008	81900001.5258789
2009	74720001.2207031
2010	77559997.55859381
2011	73449996.9482422
2012	41159999.8474121
2013	81889999.3896484
2014	96250000
2015	148330001.831055
2016	59990001.6784668
2017	95160003.6621094
2018	81110000.6103516
2019	101500000
2020	121069999.69482401
2021	119690002.441406
2022	70510002.1362305