Year	current US$
1960	9000000
1961	18000000
1962	34000000
1963	11000000
1964	11000000
1965	25219999.3133545
1966	21479999.5422363
1967	21959999.084472697
1968	14319999.6948242
1969	13000000
1970	10000000
1971	10000000
1972	10000000
1973	6000000
1974	5000000
1975	8000000
1976	15000000
1977	10000000
1978	10000000
1979	10000000
1980	32000000
1981	63000000
1982	62000000
1983	54000000
1984	84000000
1985	52000000
1986	48000000
1987	25000000
1988	22000000
1989	13000000
1990	19000000
1991	42000000
1992	10000000
1993	12000000
1994	17000000
1995	12000000
1996	13000000
1997	12000000
1998	8670000.07629395
1999	36400001.5258789
2000	15869999.8855591
2001	12609999.6566772
2002	15079999.923706101
2003	30209999.084472697
2004	102510002.13623
2005	86349998.4741211
2006	88389999.3896484
2007	102730003.35693401
2008	275989990.234375
2009	96930000.3051758
2010	127150001.52587901
2011	149270004.272461
2012	175050003.05175802
2013	157929992.67578098
2014	209309997.55859402
2015	514059997.558594
2016	399559997.558594
2017	286130004.88281304
2018	229589996.33789098
2019	182500000
2020	178800003.05175802
2021	144490005.493164
2022	119709999.084473