Year	current US$
1970	3240000.04120171
1971	2660000.0299513335
1972	2630000.043660401
1973	2820000.0375509257
1974	3170000.0166893033
1975	3570000.0189244724
1976	3889999.9540299163
1977	4589999.973773956
1978	5729999.929666524
1979	5640000.02667308
1980	1919999.973848461
1981	7849999.9996274635
1982	8100000.001490124
1983	10320000.126957886
1984	8690000.049769878
1985	10190000.07212163
1986	9970000.073313711
1987	13340000.227093691
1988	10700000.017881388
1989	13430000.074207788
1990	12680000.033229586
1991	17189999.796450146
1992	14970000.322908167
1993	21359999.991953377
1994	14300000.123679634
1995	31140000.045299523
1996	13749999.8807907
1997	17330000.09506939
1998	15059999.898076061
1999	22509999.99046325
2000	23640000.045299537
2001	18689999.803900715
2002	21900000.229477875
2003	25490000.121295456
2004	24560000.022873275
2005	30459999.65071678
2006	21559999.767690897
2007	29689999.759197235
2008	8900000.0320375