Year	US Dollars adjusted for inflation)
1960	10000000
1961	66000000
1962	90000000
1963	86000000
1964	120000000
1965	137000000
1966	116000000
1967	63000000
1968	15000000
1969	14000000
1970	15000000
1971	13000000
1972	8000000
1973	58000000
1974	76000000
1975	190000000
1976	26000000
1977	24000000
1978	42000000
1979	29000000
1980	60000000
1981	72000000
1982	152000000
1983	114000000
1984	110000000
1985	98000000
1986	27000000
1987	36000000
1988	27000000
2008	14000000
2010	27000000
2011	3000000
2012	78000000
2015	73000000
2019	17000000