Year	US Dollars adjusted for inflation)
1960	2000000
1961	1000000
1962	1000000
1963	6000000
1964	1000000
1965	1000000
1970	21000000
1971	13000000
1973	1000000
1974	5000000
1975	5000000
1976	15000000
1977	29000000
1978	17000000
1979	24000000
1981	19000000
1982	16000000
1984	0
1985	3000000
1989	8000000
1990	16000000
1991	18000000
1994	16000000
1995	2000000
1996	2000000
1997	8000000
1998	4000000
2000	31000000
2002	27000000
2003	7000000
2010	10000000
2011	5000000
2012	11000000
2014	8000000
2015	1000000
2016	35000000
2018	1000000
2019	34000000