Year 2011 PPP (%) 1987 0.1 1989 1.9 1993 0.5 2004 0.6 2005 1.4 2006 0.4 2007 0.4 2008 0.3 2009 0.3 2010 0.4 2011 0.5 2012 1.1 2013 0.9 2014 1.2 2015 1.1