Year	US Dollars adjusted for inflation)
1968	0
1971	0
1974	2000000
1979	3000000
1985	1000000
1990	10000000
1993	8000000
1996	29000000
1997	1000000
2004	10000000
2014	28000000
2016	28000000
2017	19000000
2021	1000000
2022	4000000