Year	current US$
1970	12640000.041574234
1971	13540000.021457674
1972	15490000.050514944
1973	17010000.06310641
1974	21569999.841973186
1975	19160000.011324883
1976	21810000.02846122
1977	27100000.11138617
1978	32080000.16957521
1979	32160000.205039985
1980	8819999.994710086
1981	41139999.88138676
1982	36569999.90716578
1983	53469999.74176289
1984	40749999.68893825
1985	64169999.822974175
1986	48960000.29891729
1987	70590000.34257771
1988	49820000.35978855
1989	74700000.69588424
1990	62570000.082254395
1991	89690000.56385992
1992	71660000.66883864
1993	110009999.83772637
1994	75589999.80427326
1995	177850001.47670504
1996	68939999.90820882
1997	105980000.02652407
1998	71419999.89747998
1999	113760000.66101551
2000	115630000.87440014
2001	101899999.23110007
2002	110730000.35434955
2003	127140000.5891919
2004	115740000.4453957
2005	151070000.4696846
2006	97350000.61243771
2007	122359999.96215104
2008	36179999.74265695