Year	$ 2017 PPP (%)
1998	0.7
1999	1.49
2000	1.65
2001	1.02
2002	1.09
2003	0.72
2004	0.61
2005	0.38
2006	0.52
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2016	0