Year	current US$
1970	3769999.995827675
1971	3879999.980330468
1972	4570000.082254411
1973	4990000.039339062
1974	5369999.989867209
1975	5490000.039339069
1976	6100000.001490112
1977	7640000.047162173
1978	8300000.119954342
1979	7799999.825656416
1980	2069999.9798089263
1981	9849999.882280834
1982	9319999.873638157
1983	12779999.777674682
1984	9229999.922215931
1985	14319999.933242787
1986	12240000.069141386
1987	15849999.994039547
1988	12130000.11444091
1989	18480000.01907349
1990	15770000.040531158
1991	21329999.923706055
1992	16960000.038146976
1993	23990000.307559963
1994	16469999.96900559
1995	40090000.0333786
1996	15959999.769926067
1997	25539999.783039078
1998	16360000.10371209
1999	27040000.438690178
2000	21170000.195503227
2001	24770000.040531166
2002	20829999.774694443
2003	27020000.2193451
2004	20080000.22172927
2005	27780000.09059906
2006	19120000.06437302
2007	25150000.274181377
2008	9420000.016689306