Year	2011 PPP (%)
1980	1.5
1986	0.8
1987	1.9
1991	4.5
1992	4.9
1993	5.5
1994	5.7
1995	8.1
1996	9.1
1997	8.5
1998	9.4
1999	9.7
2000	11.2
2001	14.8
2002	21.7
2003	12.9
2004	10.3
2005	8.4
2006	6.9
2007	6.1
2008	5.8
2009	5.2
2010	4.9
2011	2.7
2012	2.7
2013	2.5
2014	2.7
2016	2.7
2017	2.4