Year	US Dollars adjusted for inflation)
1960	66000000
1963	3000000
1964	3000000
1965	29000000
1966	9000000
1967	21000000
1968	5000000
1969	1000000
1970	5000000
1971	85000000
1972	41000000
1973	15000000
1974	22000000
1975	40000000
1976	225000000
1977	571000000
1978	192000000
1979	110000000
1980	296000000
1981	152000000
1982	257000000
1983	388000000
1984	349000000
1985	23000000
1986	25000000
1987	40000000
1988	26000000
1989	20000000
1990	3000000
1991	136000000
1992	4000000
1993	18000000
1994	13000000
1995	44000000
1996	29000000
1997	99000000
1998	31000000
1999	16000000
2001	10000000
2002	1000000
2004	15000000
2005	47000000
2006	47000000
2007	2000000
2008	102000000
2009	77000000
2010	89000000
2011	68000000
2012	88000000
2013	11000000
2014	53000000
2015	27000000
2016	26000000
2017	20000000
2018	5000000
2019	3000000
2020	21000000
2021	14000000
2022	1000000