Year 2017 PPP (%) 1997 8.2 1998 7.8 1999 8 2000 7.3 2001 7.7 2002 6.7 2003 4.8 2004 5.6 2005 6.6 2006 5.7 2007 4.6 2008 3.6 2009 2.8 2010 2.1 2011 1.9 2012 1.8 2013 1.6 2014 1.3 2015 1.3 2016 1.2 2017 1.2 2018 1 2019 0.8 2020 1.8 2021 0.7 2022 0.8