Year current US$ 1964 9999.99977648258 1965 50000.0007450581 1966 59999.9986588955 1967 59999.9986588955 1968 39999.9991059303 1969 9999.99977648258 1970 9999.99977648258 1972 9999.99977648258 1974 29999.999329447703 1975 19999.9995529652 1976 29999.999329447703 1977 79999.9982118607 1978 159999.99642372102 1979 150000.005960464 1980 280000.001192093 1981 209999.993443489 1982 70000.0002980232 1983 70000.0002980232 1984 79999.9982118607 1985 939999.997615814 1986 90000.0035762787 1987 230000.004172325 1988 39999.9991059303 1989 100000.00149011599 1990 42189998.626709 1991 -4719999.79019165 1992 -5000000 1993 -4820000.17166138 1994 -12479999.5422363 1995 -2079999.9237060498 1996 -4070000.1716613797