Year	2011 PPP (%)
1981	8.6
1982	8.7
1983	11.3
1984	10.6
1985	9
1986	4.1
1987	7.2
1988	8.6
1989	7.7
1990	8.7
1992	9.1
1993	8.6
1995	5.3
1996	6.1
1997	6
1998	5.2
1999	5.4
2001	4.6
2002	3.9
2003	4.3
2004	3.6
2005	3.2
2006	2.7
2007	2.8
2008	2.2
2009	2.1
2011	1.9
2012	1.5
2013	1.5
2014	1
2015	1.2
2016	1.6
2017	1.8