Year	2017 PPP (%)
1985	7.8
1986	7.9
1987	8.2
1988	7.9
1989	7.9
1990	7.2
1991	7.4
1992	6.9
1993	6.7
1994	6.4
1995	6.5
1996	5.9
1997	5.6
1998	5.1
1999	4.9
2000	4.5
2001	4.5
2003	4.4
2004	4
2005	4
2006	3.8
2007	3.8
2008	3.7
2009	3.3
2010	2.9
2011	2.9
2012	2.9
2013	3
2014	3.2
2015	3.8
2016	4.4
2017	4.6
2018	4.6