Year	US Dollars adjusted for inflation)
1961	1000000
1962	8000000
1963	9000000
1964	2000000
1965	56000000
1966	159000000
1967	45000000
1968	50000000
1969	39000000
1970	14000000
1971	12000000
1972	113000000
1973	7000000
1974	24000000
1975	424000000
1976	104000000
1977	89000000
1978	141000000
1979	108000000
1980	474000000
1981	331000000
1982	642000000
1983	41000000
1984	359000000
1985	569000000
1986	211000000
1987	115000000
1988	62000000
1989	15000000
1990	18000000
1991	3000000
1992	58000000
1993	41000000
1994	95000000
1995	2000000
1996	15000000
1997	1000000
2000	36000000
2001	9000000
2002	6000000
2003	64000000
2004	11000000
2006	16000000
2007	62000000
2008	33000000
2009	65000000
2010	189000000
2011	63000000
2012	28000000
2013	30000000
2014	228000000
2015	192000000
2016	50000000
2017	41000000
2018	49000000
2019	18000000
2020	108000000
2021	261000000
2022	54000000