Year	US Dollars adjusted for inflation)
1975	28000000
1976	33000000
1977	150000000
1978	492000000
1979	111000000
1980	52000000
1981	60000000
1982	64000000
1983	59000000
1984	94000000
1985	73000000
1986	6000000
1999	2000000
2003	1000000
2011	0
2012	0
2013	9000000
2014	16000000
2015	5000000
2016	45000000
2019	22000000
2020	1000000
2021	16000000
2022	5000000