Year	$ 2017 PPP (%)
1998	6.77
1999	8.44
2000	9.17
2001	6.04
2002	5.86
2003	5.52
2004	4.78
2005	3.77
2006	3.44
2007	2.54
2008	1.27
2009	1.07
2010	1.85
2011	1.42
2012	1.22
2013	1.39
2016	1.4