Year	2011 PPP (% of population)
2003	1.7
2004	1.5
2005	1.7
2006	1.5
2007	1.5
2008	1.7
2009	1.7
2010	2.5
2011	2.5
2012	3
2013	3
2014	2.7
2015	3.5