Year	2011 PPP (% of population)
1996	0.5
2004	0
2005	0.2
2006	0.2
2007	0.2
2008	0.5
2009	0.4
2010	0.5
2011	0.5
2012	0.2
2013	0.2
2014	0.7
2015	0.7