Year current US$ 1974 1570000.05245209 1975 519999.980926514 1976 959999.978542328 1977 949999.988079071 1978 3339999.8936802167 1979 579999.9926239256 1980 1190000.0162422652 1981 679999.9997019772 1982 189999.9957531691 1983 49999.998882413 1984 -39999.9991059303 1985 -70000.0002980232 1986 -60000.004246831 1987 1169999.9999254937 1988 11510000.152513394 1989 389999.985694886 1990 2140000.10490417 1991 -340000.01847744005 1992 -830000.0727176631 1993 -299999.9970197723 1994 -1059999.9651312844 1995 -630000.0250339512 1996 -2230000.015348193 1997 -3099999.945610762 1998 229999.96878207033 1999 3289999.896660446 2000 -3559999.8831748934 2001 -669999.975711107 2002 -650000.0264495615 2003 -1330000.04291534 2004 -50000.017508864345