Year	2011 PPP (%)
1987	3.4
1994	4
2002	3.1
2003	4.3
2004	2.7
2005	2.8
2006	2.1
2007	1.6
2008	1.3
2009	1.1
2010	1.1
2011	0.8
2012	0.7
2013	0.6
2014	0.4
2015	0.5
2016	0.4