Year	2011 PPP (%)
1987	0.5
1994	0.7
2002	0.3
2003	0.9
2004	0.3
2005	0.5
2006	0.3
2007	0.2
2008	0.2
2009	0.1
2010	0.1
2011	0
2012	0
2013	0.1
2014	0
2015	0.1
2016	0