Year	US Dollars adjusted for inflation)
1960	2000000
1961	8000000
1962	6000000
1963	8000000
1964	0
1965	0
1966	2000000
1971	5000000
1972	5000000
1973	10000000
1976	8000000
1977	19000000
1978	13000000
1981	41000000
1982	67000000
1983	47000000
1984	165000000
1985	87000000
1986	88000000
1987	151000000
1988	63000000
1989	14000000
1990	102000000
1991	1000000
2007	14000000
2009	14000000
2014	13000000
2015	14000000
2016	86000000
2017	7000000
2019	13000000