Year current US$ 1960 9999.99977648258 1963 19999.9995529652 1964 59999.9986588955 1965 140000.000596046 1966 400000.00596046395 1967 1230000.01907349 1968 200000.00298023198 1969 29999.999329447703 1971 159999.99642372102 1972 330000.013113022 1973 620000.004768372 1974 449999.988079071 1975 800000.011920929 1976 430000.00715255697 1977 349999.99403953605 1978 389999.98569488496 1979 419999.986886978 1980 519999.980926514 1981 180000.00715255702 1982 109999.999403954 1983 109999.999403954 1984 150000.005960464 1985 170000.00178813902 1986 129999.995231628 1987 289999.99165535 1988 360000.01430511504 1989 180000.00715255702 1990 90000.0035762787 1995 239999.994635582