Year	US Dollars adjusted for inflation)
1960	119000000
1961	111000000
1962	8000000
1963	5000000
1965	10000000
1966	407000000
1967	4000000
1968	56000000
1970	168000000
1971	133000000
1972	20000000
1973	19000000
1974	7000000
1975	48000000
1976	7000000
1977	34000000
1981	31000000
1982	62000000
1983	100000000
1984	41000000
1985	9000000
1986	29000000
1987	5000000
1988	61000000
1989	26000000
1990	23000000
1991	42000000
1992	55000000
1993	36000000
1994	16000000
1995	7000000
1996	7000000
1997	309000000
1998	15000000
1999	305000000
2001	45000000
2002	17000000
2003	157000000
2004	99000000
2005	10000000
2006	6000000
2007	81000000
2008	3000000
2009	56000000
2010	78000000
2011	28000000
2012	30000000
2013	26000000
2014	84000000
2015	90000000
2018	6000000
2019	3000000
2020	125000000
2021	7000000
2022	157000000