Year	2011 PPP (% of population)
2003	3.2
2004	2.7
2005	2.7
2006	2.2
2007	1.7
2008	2.2
2009	1.5
2010	2
2011	2.7
2012	4.5
2013	4.5
2014	3.7
2015	3