Year current US$ 1960 -39999.9991059303 1964 50000.0007450581 1965 59999.9986588955 1966 39999.9991059303 1967 39999.9991059303 1968 39999.9991059303 1969 50000.0007450581 1970 19999.9995529652 1971 140000.000596046 1972 889999.985694885 1973 9999.99977648258 1974 50000.0007450581 1975 109999.999403954 1976 70000.0002980232 1977 29999.999329447703 1978 59999.9986588955 1979 140000.000596046 1980 159999.99642372102 1981 79999.9982118607 1982 29999.999329447703 1983 9999.99977648258 1984 9999.99977648258 1985 9999.99977648258 1986 9999.99977648258 1987 19999.9995529652 1988 9999.99977648258 1989 29999.999329447703 1990 140000.000596046 1991 170000.00178813902 1992 29999.999329447703 1993 300000.011920929 1994 29999.999329447703 1995 70000.0002980232 1996 159999.99642372102 1998 19999.9995529652 1999 29999.999329447703 2001 39999.9991059303 2003 19999.9995529652