Year current US$ 1969 39999.9991059303 1970 50000.0007450581 1971 50000.0007450581 1972 39999.9991059303 1973 39999.9991059303 1974 29999.999329447703 1975 19999.9995529652 1976 19999.9995529652 1977 70000.0002980232 1978 59999.9986588955 1979 50000.0007450581 1981 79999.9982118607 1982 90000.0035762787 1983 100000.00149011599 1984 59999.9986588955 1985 59999.9986588955 1986 29999.999329447703 1987 129999.995231628 1988 59999.9986588955 1989 70000.0002980232 1990 29999.999329447703 1991 259999.990463257 1992 90000.0035762787 1993 230000.004172325 1994 170000.00178813902 1995 600000.023841858 1996 79999.9982118607 1997 230000.004172325 1998 150000.005960464 1999 330000.013113022 2000 209999.993443489 2001 180000.00715255702 2002 280000.001192093 2003 239999.994635582 2004 370000.00476837205