Year 2011 PPP (%) 1993 6.7 1995 6.1 1996 7.1 2004 5.5 2005 5.1 2006 2.8 2007 1.7 2008 2.2 2009 3.6 2010 3.6 2011 2.9 2012 2.7 2013 2.4 2014 2 2015 1.5