Year US Dollars adjusted for inflation) 1993 21000000 1994 18000000 1995 7000000 1996 41000000 1997 53000000 1998 214000000 1999 31000000 2000 20000000 2001 57000000 2002 18000000 2003 17000000 2004 80000000 2005 98000000 2007 4000000