Year	current US$
1961	1000000
1962	6000000
1963	15000000
1964	12000000
1965	22370000.8392334
1966	11909999.8474121
1967	6570000.17166138
1968	4500000
1969	8000000
1970	4000000
1971	5000000
1972	1000000
1973	4000000
1974	5000000
1975	7000000
1976	5000000
1977	3000000
1978	11000000
1979	5000000
1980	8000000
1981	10000000
1982	5000000
1983	5000000
1984	4000000
1985	6000000
1986	12000000
1987	9000000
1988	13000000
1989	4000000
1991	15000000
1992	14000000
1993	14000000
1994	33000000
1995	28000000
1996	24000000
1997	22000000
1998	13840000.1525879
1999	21790000.915527303
2000	25680000.3051758
2001	34909999.8474121
2002	47650001.5258789
2003	44369998.9318848
2004	47650001.5258789
2005	43599998.4741211
2006	34849998.4741211
2007	24739999.7711182
2008	43310001.373291
2009	34860000.6103516
2010	21829999.9237061
2011	16239999.7711182
2012	19930000.3051758
2013	27110000.6103516
2014	41500000
2015	76720001.2207031
2016	125430000.30517599
2017	74040000.9155273
2018	78580001.8310547
2019	60549999.237060495
2020	43220001.220703095
2021	43279998.779296905
2022	37930000.3051758