Year	$ 2011 PPP (%)
1996	0.027697
2001	0.3287179
2002	0.369179
2003	0.2082662
2004	0.2386873
2005	0
2006	0.0280211
2007	0.0344357
2008	0.0200575
2009	0.0091702
2010	0
2011	0
2012	0
2013	0