Year 2017 PPP (%) 2004 1.2 2005 2.2 2006 0.8 2007 0.8 2008 0.6 2009 0.7 2010 1 2011 1.2 2012 1.9 2013 1.8 2014 1.7 2015 1.5 2016 1.8 2017 1.6 2018 1 2019 0.9 2020 0.9 2021 0.9