Year current US$ 1969 189999.99761581398 1970 250000 1971 230000.004172325 1972 200000.00298023198 1973 259999.990463257 1974 469999.998807907 1975 209999.993443489 1976 259999.990463257 1977 439999.997615814 1978 460000.00834465 1979 419999.986886978 1980 159999.99642372102 1981 589999.973773956 1982 699999.988079071 1983 569999.992847443 1984 469999.998807907 1985 740000.009536743 1986 790000.021457672 1987 1110000.01430511 1988 810000.002384186 1989 1370000.00476837 1990 1389999.98569489 1991 1559999.9427795399 1992 1629999.99523163 1993 1590000.0333786 1994 1519999.98092651 1995 2480000.01907349 1996 1570000.05245209 1997 1820000.05245209 1998 1559999.9427795399 1999 1620000.00476837 2000 1440000.0572204601 2001 1360000.01430511 2002 1240000.0095367401 2003 1690000.0572204601 2004 1559999.9427795399 2005 1909999.9666214 2006 1320000.05245209 2007 1480000.01907349 2008 939999.997615814