Year 2011 PPP (%) 1987 7.3 1994 7.7 1998 6.1 1999 9.8 2000 11.6 2003 5.6 2004 6.2 2005 4.6 2006 2.8 2007 3.1 2008 2.9 2009 2.5 2010 1.9 2011 1.8 2012 1.5 2013 1 2014 0.8 2015 1.2 2016 1.2 2017 1.1