Year current US$ 1969 109999.999403954 1970 259999.990463257 1971 159999.99642372102 1972 140000.000596046 1973 140000.000596046 1974 280000.001192093 1975 140000.000596046 1976 180000.00715255702 1977 209999.993443489 1978 209999.993443489 1979 280000.001192093 1980 230000.004172325 1981 449999.988079071 1982 639999.985694885 1983 579999.983310699 1984 529999.971389771 1985 750000 1986 560000.002384186 1987 750000 1988 959999.978542328 1989 1100000.02384186 1990 740000.009536743 1991 930000.007152557 1992 1250000 1993 1340000.0333786 1994 870000.004768372 1995 1870000.00476837 1996 959999.978542328 1997 1259999.9904632599 1998 1080000.04291534 1999 1750000 2000 2000000 2001 1340000.0333786 2002 1480000.01907349 2003 1470000.02861023 2004 1340000.0333786 2005 1649999.97615814 2006 730000.019073486 2007 740000.009536743 2008 340000.00357627904