Year 2017 PPP (%) 2003 0 2004 0.1 2005 0 2006 0.1 2007 0.1 2008 0.1 2009 0.1 2010 0.1 2011 0.1 2012 0 2013 0.1 2014 0 2015 0 2016 0 2017 0