Year	US Dollars adjusted for inflation)
1964	3000000
1965	1000000
1966	16000000
1967	4000000
1968	27000000
1969	16000000
1970	3000000
1971	3000000
1972	20000000
1973	17000000
1974	46000000
1975	123000000
1976	34000000
1977	5000000
1982	14000000
1985	10000000
1987	31000000
1988	1000000
1989	20000000
1995	32000000
1998	55000000
1999	39000000
2000	6000000
2002	33000000
2004	36000000
2005	10000000
2006	5000000
2007	0
2008	14000000
2009	26000000
2010	37000000
2011	469000000
2012	216000000
2013	20000000
2014	2000000
2015	6000000
2016	1000000
2017	22000000
2018	10000000
2019	36000000
2020	67000000
2021	7000000
2022	48000000