Year	$ 2017 PPP (%)
2002	5.16
2003	4.85
2004	3.39
2005	3.4
2006	2.96
2007	2.85
2008	3.07
2009	2.24
2010	2.63
2011	2.85
2012	1.83
2013	1.7
2014	1.26
2015	1.39
2016	0.97