Year	US Dollars adjusted for inflation)
1960	1000000
1961	61000000
1962	100000000
1963	8000000
1964	14000000
1966	5000000
1969	31000000
1971	15000000
1972	9000000
1973	36000000
1974	55000000
1978	9000000
1979	11000000
1980	167000000
1983	17000000
1984	17000000
1985	44000000
1986	92000000
1989	15000000
1990	30000000
1991	54000000
1992	101000000
1993	122000000
1994	130000000
1995	126000000
1996	165000000
1997	25000000
2007	40000000
2017	2000000
2018	3000000
2022	13000000