Year	US Dollars adjusted for inflation)
1960	1000000
1961	2000000
1962	5000000
1963	11000000
1964	41000000
1965	43000000
1966	37000000
1967	20000000
1968	15000000
1969	18000000
1970	6000000
1971	22000000
1972	106000000
1973	123000000
1974	23000000
1978	43000000
1980	34000000
1983	13000000
1984	67000000
1985	68000000
1986	134000000
1987	50000000
1988	10000000
1989	119000000
1990	45000000
1993	2000000
1994	72000000
1995	1000000
1996	26000000
1997	21000000
2006	14000000
2007	56000000
2009	4000000
2010	34000000
2012	77000000
2013	67000000
2018	5000000
2019	1000000
2021	28000000
2022	14000000