Year 2017 PPP (%) 1982 0.7 1992 0.7 2000 0.2 2002 0 2006 0.2 2007 0.1 2008 0.1 2009 0.1 2010 0.1 2011 0 2012 0 2013 0 2014 0.1 2015 0 2016 0.1 2017 0 2018 0.1 2019 0 2020 0.1