Year	current US$
1969	439999.997615814
1970	550000.011920929
1971	649999.976158142
1972	819999.992847443
1973	730000.019073486
1974	709999.978542328
1975	980000.019073486
1976	990000.009536743
1977	1179999.94754791
1978	1440000.0572204601
1979	1289999.96185303
1980	189999.99761581398
1981	1769999.98092651
1982	1620000.00476837
1983	2700000.04768372
1984	1230000.01907349
1985	2470000.02861023
1986	1210000.03814697
1987	2470000.02861023
1988	1830000.04291534
1989	3319999.9332428
1990	2039999.96185303
1991	3420000.07629395
1992	2410000.08583069
1993	4269999.98092651
1994	2779999.97138977
1995	7469999.79019165
1996	1990000.0095367401
1997	4400000.09536743
1998	2069999.9332428002
1999	3819999.9332428
2000	4139999.8664856004
2001	3259999.99046326
2002	4619999.88555908
2003	5289999.96185303
2004	5300000.19073486
2005	7269999.98092651
2006	4699999.80926514
2007	5519999.98092651
2008	1139999.98569489