Year	US Dollars adjusted for inflation)
1960	15000000
1962	16000000
1963	20000000
1967	21000000
1971	5000000
1972	21000000
1973	0
1974	2000000
1975	42000000
1976	19000000
1977	4000000
1978	13000000
1981	15000000
1982	81000000
1983	34000000
1984	26000000
1985	28000000
1986	212000000
1987	29000000
1988	2000000
1990	2000000
1991	42000000
1992	60000000
1993	0
1998	1000000
1999	25000000
2000	3000000
2001	10000000
2003	16000000
2004	14000000
2005	25000000
2006	25000000