Year 2017 PPP (%) 1992 4.4 1993 3 1995 7.5 1996 8.3 2002 3.7 2003 2.1 2004 1.6 2005 0.7 2006 0.5 2007 0.3 2008 0.1 2009 0.2 2010 0.1 2011 0.1 2012 0.1 2013 0 2014 0 2015 0.2 2016 0.1 2017 0.1 2018 0.1 2019 0.1 2020 0