Year	US Dollars adjusted for inflation)
1970	17000000
1974	2000000
1975	2000000
1977	0
1982	178000000
1983	46000000
1984	1000000
1985	29000000
1986	31000000
1988	15000000
1992	40000000
1993	40000000
1996	0
1997	0
2006	3000000
2009	20000000
2010	20000000