Year	2011 PPP (% of population)
2003	0.2
2004	0.5
2005	0.9
2006	0.2
2007	0.5
2008	0.5
2009	0.5
2010	0.5
2011	0.5
2012	0.5
2013	0.7
2014	0.5
2015	0.5