Year	2017 PPP (%)
1992	19.2
1993	18.5
1995	24.4
1996	28.3
2002	20.8
2003	16
2004	12.4
2005	7.8
2006	6.3
2007	5.9
2008	3.3
2009	3.9
2010	2.6
2011	2.2
2012	1.8
2013	1.4
2014	1.5
2015	3.1
2016	2.8
2017	2.2
2018	1.7
2019	1.3
2020	1.3