Year current US$ 1960 -39999.9991059303 1964 50000.0007450581 1965 59999.9986588955 1966 39999.9991059303 1967 679999.9848008153 1968 39999.9991059303 1969 50000.0007450581 1970 19999.9995529652 1971 140000.000596046 1972 929999.9848008155 1973 69999.99843537807 1974 80000.0000745059 1975 129999.99895691921 1976 140000.00059604645 1977 159999.99828636646 1978 409999.9982863666 1979 379999.9989569182 1980 269999.9939650295 1981 189999.99761581418 1982 290000.00469386537 1983 229999.99299645386 1984 8930000.042542815 1985 140000.00059604636 1986 870000.028982758 1987 340000.0054389236 1988 539999.9972432847 1989 2610000.047832731 1990 869999.9991804356 1991 1179999.9978393312 1992 1320000.0319629898 1993 -79999.9888986348 1994 -110000.01057982462 1995 2819999.9500066 1996 -409999.9628961133 1997 2840000.0166147985 1998 22170000.309124608 1999 10760000.31456351 2000 5189999.828115103 2001 7130000.11444092 2002 3050000.0659376467 2003 3429999.874904753 2004 3990000.037476428