Year 2017 PPP (%) 2000 30.7 2001 27.5 2002 26.4 2003 23.2 2004 13 2005 14.6 2006 10 2007 9.5 2008 5.3 2009 3.6 2010 5.2 2011 3.5 2012 4.2 2013 5 2014 3 2015 4.2 2016 3 2017 3.1 2018 2.2 2019 2 2020 3.5 2021 2.1