Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	69999.9984353781
1967	279999.995604157
1968	759999.9960511919
1969	1979999.97250736
1970	4130000.0436603995
1971	7120000.1388788195
1972	7459999.99716878
1973	18289999.963715702
1974	19990000.249818
1975	20630000.1218915
1976	22059999.7937679
1977	20719999.5499104
1978	13849999.8766929
1979	35980000.751093
1980	60559999.726712696
1981	30640000.7270277
1982	33849999.0720302
1983	24960000.438615702
1984	18029999.915510397
1985	18800000.0510365
1986	21460000.3510714
1987	38939999.9026209
1988	28580000.0168383
1989	18479999.642819203
1990	14520000.208169201
1991	51690001.5249848
1992	45929999.5079637
1993	52289999.7569621
1994	50710001.6269833
1995	34710000.2467632
1996	50500000.5569309
1997	22620000.379160002
1998	33059999.7285753
1999	24020000.4056096
2000	60970000.693574496
2001	30040000.099688802
2002	26710000.7012486
2003	26859999.561682303
2004	27790000.135079
2005	39489999.9815971
2006	52920000.4637241
2007	31209999.6302277
2008	45779999.8857081
2009	38409999.2327392
2010	24539999.488741197
2011	31109999.5225668
2012	32930000.4839897
2013	37890000.132843904
2014	37729999.9985844
2015	17680000.1040101
2016	15139999.8981506
2017	15340000.1749396
2018	47509999.0796298
2019	31400000.369176302
2020	21089999.586343803
2021	23119999.5242059
2022	12890000.017359843