Year	current US$
1970	5780000.014230614
1971	5470000.015571712
1972	5979999.965056774
1973	6490000.093355773
1974	9329999.882727861
1975	6819999.972358344
1976	8879999.97101723
1977	11140000.026673077
1978	12300000.00447034
1979	13569999.922066923
1980	4549999.98025596
1981	17470000.032335524
1982	14430000.07234513
1983	22720000.13664365
1984	15929999.923333526
1985	29580000.055953868
1986	25130000.17404556
1987	34740000.2013892
1988	23259999.8936057
1989	35450000.32521784
1990	37869999.97124075
1991	44539999.626576915
1992	34509999.92899595
1993	51529999.8279661
1994	35389999.959617846
1995	86730000.07495293
1996	37740000.223740935
1997	56950000.0346452
1998	41599999.82826411
1999	58149999.98174606
2000	54800000.19259751
2001	56699999.8074025
2002	55819999.525323525
2003	63870000.34376979
2004	56620000.131428234
2005	64659999.89211559
2006	45750000.12852252
2007	59279999.93413688
2008	27480000.119656336