Year	current US$
1965	2069999.9332428002
1966	3250000
1967	3599999.90463257
1968	2740000.00953674
1969	2650000.09536743
1970	3809999.94277954
1971	4880000.11444092
1972	4320000.17166138
1973	3900000.09536743
1974	5159999.84741211
1975	5469999.79019165
1976	6429999.82833862
1977	7940000.05722046
1978	12409999.8474121
1979	11630000.1144409
1980	8739999.77111816
1981	8989999.77111816
1982	13159999.8474121
1983	15859999.6566772
1984	22579999.9237061
1985	21760000.2288818
1986	18670000.0762939
1987	16559999.465942401
1988	21079999.9237061
1989	30790000.915527303
1990	29719999.3133545
1991	30100000.3814697
1992	28469999.3133545
1993	25920000.0762939
1994	28299999.237060502
1995	25270000.4577637
1996	20489999.7711182
1997	13869999.8855591
1998	12449999.8092651
1999	12470000.2670288
2000	13750000
2001	11960000.038146999
2002	7760000.228881841
2003	10510000.2288818
2004	9989999.77111816
2005	6130000.11444092
2006	3170000.07629395
2007	4230000.01907349
2008	4590000.15258789
2009	4130000.11444092
2010	8100000.38146973
2011	10329999.923706101
2012	13619999.8855591
2013	6159999.84741211
2014	6000000
2015	4380000.11444092
2016	2869999.8855590797
2017	4579999.92370605
2018	2369999.8855590797
2019	4480000.01907349
2020	5849999.90463257
2021	6780000.20980835
2022	12899999.6185303