Year $ 2011 PPP (%) 1996 0.3462124 2001 0.9092142 2002 0.8712677 2003 0.7237026 2004 0.7192468 2005 0.0786722 2006 0.3897653 2007 0.2282151 2008 0.1928588 2009 0.0947833 2010 0.0995674 2011 0 2012 0 2013 0.0180969