Year	US Dollars adjusted for inflation)
1967	2000000
1971	3000000
1973	5000000
1974	11000000
1975	105000000
1976	21000000
1978	4000000
1979	4000000
1980	2000000
1983	1000000
1986	1000000
1987	1000000
1989	71000000
1993	1000000
2008	99000000
2009	46000000
2011	0
2012	0
2014	18000000
2015	7000000
2016	172000000
2017	56000000
2018	3000000
2019	3000000
2020	46000000
2021	11000000
2022	2000000