Year current US$ 1969 19999.9995529652 1970 59999.9986588955 1971 70000.0002980232 1972 50000.0007450581 1973 90000.0035762787 1974 19999.9995529652 1975 119999.997317791 1976 90000.0035762787 1977 70000.0002980232 1978 119999.997317791 1979 70000.0002980232 1981 119999.997317791 1982 119999.997317791 1983 280000.001192093 1984 140000.000596046 1985 289999.99165535 1986 219999.998807907 1987 239999.994635582 1989 70000.0002980232 1990 19999.9995529652 1991 59999.9986588955 1992 19999.9995529652 1993 119999.997317791 1994 19999.9995529652 1996 9999.99977648258 1997 70000.0002980232 1999 29999.999329447703 2000 50000.0007450581