Year	2011 PPP (%)
1979	6.9
1989	21.4
1991	19
1995	14.9
1997	13.3
1998	13.7
1999	12
2000	10.5
2001	13
2002	9.4
2003	9.3
2004	8.4
2005	8
2006	8.8
2007	6.6
2008	4.3
2009	3
2010	3.8
2011	2.9
2012	3.6
2013	2.7
2014	3.1
2015	2.1
2016	2.1
2017	2.2