Year current US$ 1974 59999.9986588955 1975 19999.9995529652 1976 9999.99977648258 1977 29999.999329447703 1978 70000.0002980232 1979 159999.99642372102 1980 340000.00357627904 1981 100000.00149011599 1982 59999.9986588955 1983 59999.9986588955 1984 209999.993443489 1985 280000.001192093 1986 300000.011920929 1987 419999.986886978 1988 180000.00715255702 1989 39999.9991059303 1990 19999.9995529652 1991 129999.995231628 1992 159999.99642372102 1993 170000.00178813902 1994 239999.994635582 1995 39999.9991059303 1996 29999.999329447703 1998 19999.9995529652 2000 19999.9995529652 2002 439999.997615814