Year	current US$
1970	14170000.102370976
1971	15610000.036656858
1972	18250000.108033415
1973	19390000.09000301
1974	21269999.928772442
1975	23810000.194236636
1976	27000000.048428766
1977	34159999.89770352
1978	40639999.85903499
1979	38609999.818727374
1980	11879999.94680285
1981	51029999.88943337
1982	47540000.144392274
1983	66390000.45508148
1984	52469999.66166912
1985	78469999.85352156
1986	65350000.10021031
1987	86970000.4979968
1988	62620000.45925378
1989	87800000.55208802
1990	77380000.03062187
1991	100849999.79101121
1992	77800000.90040267
1993	124300000.34719706
1994	88360000.0217557
1995	196609999.89509583
1996	83219999.84979628
1997	124430000.07420778
1998	86549999.87222253
1999	137050001.0382384
2000	146490000.54970384
2001	110189999.75547194
2002	142710000.153631
2003	160550000.31739476
2004	145830000.0149757
2005	182759999.61793423
2006	116570000.17538667
2007	155919999.65906143
2008	49159999.84741211