Year 2017 PPP (%) 1989 2.9 1992 2.1 1994 2.3 1996 4.6 1998 5.2 2000 3.5 2002 2.3 2004 2.4 2005 2.6 2006 1.6 2008 1.9 2010 1.4 2012 1.2 2014 1.1 2016 0.6 2018 0.5 2020 0.6 2022 0.3