Year	2011 PPP (%)
1998	2.7
1999	2.6
2000	1.7
2001	0.7
2002	0.5
2003	0.3
2004	0.1
2005	0.1
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0