Year 2017 PPP (%) 2006 2.7 2007 0.7 2008 0.4 2009 0.3 2010 0.7 2011 1 2012 0.8 2013 0.8 2014 0.5 2015 1.5 2016 0.8 2017 0.5 2018 0.3 2019 0.3 2020 0.1 2021 0.2