Year	2011 PPP (%)
1997	4.6
1998	8.9
1999	12.5
2000	10.9
2001	7.9
2002	3.9
2003	1.4
2004	1.9
2005	3.3
2006	0.6
2007	0.3
2008	0.2
2009	0.1
2010	0.1
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0