Year	US Dollars adjusted for inflation)
1960	4000000
1964	0
1969	2000000
1971	33000000
1972	47000000
1975	1000000
1976	0
1977	17000000
1978	7000000
1980	18000000
1984	48000000
1985	42000000
1986	27000000
1987	110000000
1988	19000000
1989	5000000
1990	19000000
1991	167000000
1992	22000000
1993	35000000
1994	74000000
1995	64000000
1996	207000000
1997	48000000
1998	83000000
1999	62000000
2000	293000000
2001	158000000
2002	42000000
2003	34000000
2004	48000000
2005	57000000
2006	96000000
2007	91000000
2008	79000000
2009	21000000
2010	4000000
2011	21000000
2013	20000000
2014	5000000
2017	45000000
2018	100000000
2019	59000000
2021	54000000
2022	7000000