Year	current US$
1960	9000000
1961	2000000
1962	14000000
1963	3000000
1964	14000000
1965	26000000
1966	34000000
1967	55000000
1968	39080000
1969	31000000
1970	27000000
1971	58000000
1972	105299440.860213
1973	378674889.932656
1974	466100886.441673
1975	701904310.3848
1976	293388493.246725
1977	483737719.265023
1978	381803746.850887
1979	580834332.331064
1980	336528964.647513
1981	291420769.636405
1982	198082854.415279
1983	52181803.9147588
1984	268185308.624065
1985	83053602.8119508
1986	144244639.340452
1987	223028373.221354
1988	193026913.91584
1989	126026283.281205
1990	126085359.434351
1991	126143043.098886
1992	126013750.051563
1993	126027471.169385
1994	126007935.731668
1995	126014004.17405
1996	126022561.51572
1997	126017772.332801
1998	126075203.987525
1999	126077977.905299
2000	126018209.439828
2001	126413407.547416
2002	126040264.99826
2003	126063849.16808
2004	182815435.960193
2005	17346850269.9883
2006	16467362431.0078
2007	17012957923.8149
2008	17061890083.9648
2009	17397709790.1589
2010	19465342296.8694