Year	current US$
1970	4470000.009983777
1971	4869999.989867214
1972	5530000.00305474
1973	5900000.004097816
1974	6879999.971017243
1975	7119999.967515465
1976	9189999.908208845
1977	10850000.07599592
1978	11690000.094473355
1979	12360000.172629954
1980	2749999.9757856117
1981	16290000.109002
1982	13409999.974071972
1983	21650000.251829628
1984	14890000.013634568
1985	29530000.16883016
1986	21150000.27604401
1987	30640000.261366375
1988	20070000.030100346
1989	33070000.46595931
1990	31629999.88533555
1991	37790000.10900201
1992	28340000.361204144
1993	46769999.369978905
1994	27799999.848008167
1995	76880000.27835375
1996	26100000.39637089
1997	42619999.95633959
1998	26200000.025331963
1999	43440000.159665935
2000	43290000.382810816
2001	44359999.69765544
2002	41919999.78199601
2003	48860000.15586614
2004	46759999.983012676
2005	59760000.23633241
2006	36640000.39547684
2007	51679999.653249964
2008	12620000.012218967