Year	current US$
1970	8800000.058487056
1971	9770000.083371997
1972	11010000.038892025
1973	10790000.012144445
1974	11900000.117719172
1975	13660000.06720423
1976	15980000.006034965
1977	20589999.943971638
1978	24439999.807626
1979	21269999.8319149
1980	8429999.956861136
1981	30290000.170469284
1982	30510000.094771396
1983	40900000.244379036
1984	34189999.81880187
1985	48650000.125169754
1986	46279999.88198282
1987	55770000.04053118
1988	43580000.206828095
1989	55320000.26106836
1990	53930000.03695487
1991	65720000.02861022
1992	53930000.36478045
1993	81780000.2396107
1994	63100000.38146974
1995	122649999.61853026
1996	56919999.89748002
1997	83060000.1811981
1998	61210000.09775162
1999	94810000.71763994
2000	107160000.56266783
2001	71250000.38743019
2002	104760000.70571898
2003	113630000.11444095
2004	101609999.65667725
2005	125899999.97615816
2006	75159999.81760979
2007	105890000.16450883
2008	34129999.941214934