Year 2011 PPP (%) 1985 0.2 1987 0.2 1989 0.1 2004 1.9 2005 0.9 2006 0.6 2007 0.5 2008 0.2 2009 0.3 2010 0.3 2011 0.3 2012 0.2 2013 0.4 2014 0.4 2015 0.4