Year	current US$
1970	10930000.061169263
1971	12950000.006705523
1972	15620000.064373014
1973	16570000.052452084
1974	18099999.912083145
1975	20240000.175312165
1976	23110000.09439885
1977	29569999.92392956
1978	34909999.92936848
1979	32969999.792054296
1980	9959999.972954389
1981	43179999.889805906
1982	39440000.14290215
1983	56070000.328123584
1984	43779999.611899234
1985	68279999.78139995
1986	55380000.0268966
1987	73630000.27090313
1988	51920000.44137238
1989	74370000.47788022
1990	64699999.99739229
1991	83659999.99456108
1992	62830000.577494495
1993	102940000.35524368
1994	74059999.89807607
1995	165469999.84979627
1996	69469999.96900558
1997	107099999.97913837
1998	71489999.97414647
1999	114540001.04777516
2000	122850000.50440432
2001	91499999.95157121
2002	120809999.92415309
2003	135060000.19609928
2004	121269999.9921024
2005	152299999.96721745
2006	95010000.40769577
2007	126229999.89986418
2008	40259999.81537461