Year 2017 PPP (%) 2003 1.6 2004 1.2 2005 1.2 2006 0.8 2007 0.8 2008 0.9 2009 0.6 2010 0.7 2011 1.1 2012 1.9 2013 2 2014 1.6 2015 1.3 2016 1.1 2017 0.8 2018 0.8 2019 0.4 2020 1 2021 0.5