Year	2011 PPP (%)
1997	7.2
1998	6.9
1999	7.2
2000	6
2001	6.3
2002	5.5
2003	3.8
2004	4.5
2005	5.4
2006	4.6
2007	3.7
2008	2.8
2009	2.1
2010	1.5
2011	1.4
2012	1.4
2013	1.2
2014	1
2015	1
2016	0.9
2017	0.9