Year	US Dollars adjusted for inflation)
1960	16000000
1961	27000000
1962	56000000
1963	201000000
1964	73000000
1965	78000000
1966	61000000
1967	47000000
1968	1000000
1969	12000000
1970	99000000
1971	123000000
1972	93000000
1973	22000000
1974	22000000
1975	6000000
1976	12000000
1978	8000000
1979	72000000
1980	195000000
1981	73000000
1982	97000000
1983	145000000
1984	13000000
1985	28000000
1986	19000000
1987	7000000
1988	117000000
1989	84000000
1990	5000000
1991	6000000
1992	5000000
1993	8000000
1994	38000000
1995	22000000
1996	9000000
1997	182000000
1998	228000000
1999	48000000
2000	25000000
2001	15000000
2002	81000000
2003	41000000
2004	56000000
2005	26000000
2006	5000000
2007	269000000
2008	190000000
2009	286000000
2010	7000000
2011	8000000
2012	8000000
2013	6000000
2014	2000000
2015	1000000
2016	13000000
2017	10000000
2018	6000000
2019	17000000
2020	13000000
2021	34000000
2022	4000000