Year	2017 PPP (%)
1986	16
1989	32.1
1992	22.1
1996	17.5
1997	16.4
2000	16.7
2001	16.2
2002	17.1
2003	21.3
2004	25.9
2005	20.3
2006	18.2
2007	17.9
2008	18.3
2009	16.8
2010	16.7
2011	15.4
2012	15.3
2013	14.7
2014	12.4
2015	10.6
2016	9.8
2017	7.5
2018	6.3
2019	5.6
2020	6.9
2021	6.7
2022	6.1