Year	2011 PPP (%)
1979	1.7
1989	16.3
1991	14
1995	11
1997	9.2
1998	9.9
1999	8.5
2000	6.6
2001	8
2002	4.5
2003	4.6
2004	4
2005	3.8
2006	4.5
2007	2.7
2008	1.4
2009	0.8
2010	1.3
2011	0.9
2012	1.3
2013	0.8
2014	1.1
2015	0.5
2016	0.5
2017	0.9