Year current US$ 1995 123000000 1996 136000000 1997 141000000 1998 165000000 1999 158000000 2000 159000000 2001 151000000 2002 159000000 2003 167000000 2004 188000000 2005 222000000 2006 224000000 2007 247000000 2008 257000000