Year current US$ 2000 9142788261.96078 2001 12953455039.062 2002 14636787152.9779 2003 13495248042.0358 2004 15151609107.8838 2005 17194184712.2545 2006 22618975552.6116 2007 21446607048.7844 2008 17492218084.5747 2009 15085431726.2769 2010 26338358711.1762