Year current US$ 1975 50000.0007450581 1976 29999.999329447703 1977 19999.9995529652 1978 19999.9995529652 1979 9999.99977648258 1981 19999.9995529652 1982 19999.9995529652 1983 19999.9995529652 1985 19999.9995529652 1986 9999.99977648258 1987 19999.9995529652 1988 9999.99977648258 1989 19999.9995529652 1990 9999.99977648258 1991 29999.999329447703 1992 59999.9986588955 1993 100000.00149011599 1994 119999.997317791 1995 129999.995231628 1996 90000.0035762787 1997 90000.0035762787 1998 9999.99977648258 1999 29999.999329447703 2000 19999.9995529652 2001 59999.9986588955 2002 50000.0007450581 2003 209999.993443489 2004 59999.9986588955 2005 90000.0035762787 2006 150000.005960464 2007 189999.99761581398 2008 29999.999329447703