Year current US$ 1971 9999.99977648258 1981 59999.9986588955 1982 209999.993443489 1983 209999.993443489 1984 19999.9995529652 1985 50000.0007450581 1986 9999.99977648258 1987 19999.9995529652 1988 250000 1989 239999.994635582 1990 310000.002384186 1991 419999.986886978 1992 310000.002384186 1993 200000.00298023198 1994 379999.99523162795 1995 200000.00298023198 1996 319999.99284744303 1997 300000.011920929 1998 189999.99761581398 1999 19999.9995529652 2000 29999.999329447703 2001 419999.986886978 2002 289999.99165535 2003 400000.00596046395 2005 349999.99403953605