Year	2011 PPP (%)
1984	1.7
1987	1.5
1990	1.2
1993	1.3
1996	1.2
1999	0.7
2002	0.6
2005	0.5
2008	0.5
2010	0.4
2011	0.5
2012	0.5
2013	0.5
2015	1