Year 2017 PPP (%) 1992 19.2 1993 18.5 1995 24.4 1996 28.3 2002 20.8 2003 16 2004 12.4 2005 7.8 2006 6.3 2007 5.9 2008 3.3 2009 3.9 2010 2.6 2011 2.2 2012 1.8 2013 1.4 2014 1.5 2015 3.1 2016 2.8 2017 2.2 2018 1.7 2019 1.3 2020 1.3