Year	2011 PPP (% of population)
1989	0.3
1992	0.6
1994	10.7
2006	8
2007	5.7
2008	4.5
2009	3.5
2010	4.5
2011	5.7
2012	6.7
2013	7.2
2014	7.5
2015	5.7