Year	current US$
1970	7660000.002011654
1971	9240000.03375113
1972	10810000.156983731
1973	11420000.033453103
1974	13280000.045895576
1975	14480000.134557487
1976	16730000.10102987
1977	19779999.94531274
1978	22879999.883472905
1979	21189999.820664525
1980	5469999.982044098
1981	27120000.001043078
1982	24689999.9268353
1983	35530000.03471972
1984	26479999.817907795
1985	40219999.838620424
1986	33540000.01586974
1987	44409999.92564321
1988	31950000.32521784
1989	44900000.53122641
1990	38070000.03196298
1991	49049999.89084898
1992	37670000.657439254
1993	60809999.957680695
1994	40520000.09641052
1995	99140000.34332275
1996	40829999.536275856
1997	60540000.036358826
1998	44029999.935999505
1999	69380000.91724098
2000	75840000.45433642
2001	58299999.96349214
2002	72949999.99925491
2003	82330000.29623508
2004	75009999.79302289
2005	95030000.04589558
2006	59340000.178664945
2007	79019999.92877243
2008	22439999.809488673