Year	US Dollars adjusted for inflation)
1960	1000000
1963	2000000
1964	12000000
1971	14000000
1972	27000000
1973	8000000
1974	6000000
1975	9000000
1977	5000000
1978	28000000
1979	27000000
1980	44000000
1981	12000000
1982	3000000
1984	11000000
1985	2000000
1986	38000000
1988	24000000
1991	11000000
1994	41000000
1998	3000000
1999	33000000
2000	0
2001	42000000
2002	21000000
2004	25000000
2005	5000000
2006	13000000
2007	27000000
2008	19000000
2010	4000000
2014	40000000
2015	43000000
2016	43000000
2017	2000000
2018	5000000
2019	36000000
2020	11000000