Year 2017 PPP (%) 1986 8.3 1990 8.1 1994 5.1 1998 5 2005 1.4 2006 1.3 2009 1.7 2011 0.7 2012 0.5 2013 0.5 2014 1 2015 0.8 2016 0.8 2017 0.7 2018 0.9 2019 1.2 2020 1.3 2021 1.1 2022 0.8