Year	current US$
1960	4159999.8474121103
1961	8229999.54223633
1962	11579999.923706101
1963	16440000.534057599
1964	30219999.3133545
1965	30440000.5340576
1966	24659999.8474121
1967	23069999.6948242
1968	18110000.6103516
1969	16059999.465942401
1970	17229999.5422363
1971	13550000.1907349
1972	18950000.762939498
1973	14800000.1907349
1974	16629999.160766602
1975	21260000.2288818
1976	21569999.6948242
1977	19149999.6185303
1978	20200000.762939498
1979	33180000.305175804
1980	25350000.3814697
1981	24940000.5340576
1982	20180000.3051758
1983	15069999.6948242
1984	14340000.1525879
1985	13850000.3814697
1986	11510000.2288818
1987	31649999.6185303
1988	53069999.6948242
1989	51790000.9155273
1990	50689998.626709
1991	50470001.220703095
1992	39459999.0844727
1993	21250000
1994	55849998.4741211
1995	47650001.5258789
1996	83550003.0517578
1997	28379999.1607666
1998	56650001.5258789
1999	77269996.6430664
2000	96889999.3896484
2001	63939998.626709
2002	50189998.626709
2003	106349998.47412099
2004	119500000
2005	101959999.084473
2006	170940002.44140598
2007	133720001.220703
2008	146850006.10351598
2009	111699996.94824201
2010	148029998.779297
2011	104059997.558594
2012	196910003.66210902
2013	177139999.38964802
2014	99559997.55859381
2015	130729995.727539
2016	138639999.38964802
2017	115099998.47412099
2018	111720001.22070299
2019	103500000
2020	84279998.7792969
2021	58180000.3051758
2022	39049999.237060495