Year	US Dollars adjusted for inflation)
1960	12000000
1961	107000000
1962	20000000
1963	6000000
1964	40000000
1965	40000000
1966	24000000
1967	1000000
1972	12000000
1973	8000000
1974	19000000
1975	28000000
1976	39000000
1978	18000000
1979	7000000
1980	38000000
1981	48000000
1985	5000000
1987	13000000
1989	2000000
1990	4000000
1991	1000000
1994	11000000
1996	7000000
1997	5000000
1999	7000000
2000	1000000
2001	12000000
2002	1000000
2003	6000000
2004	35000000
2005	0
2006	0
2007	16000000
2009	11000000
2010	2000000
2011	76000000
2012	39000000
2013	50000000
2014	14000000
2015	13000000
2016	22000000
2018	0
2019	2000000
2020	10000000
2022	4000000