Year	$ 2011 PPP (USD)
1998	0.0067762
1999	0.0105186
2000	0.0102598
2001	0.0077307
2002	0.0084333
2003	0.0078097
2004	0.0072565
2005	0.0056867
2006	0.0053846
2007	0.0039327
2008	0.0016397
2009	0.0015625
2010	0.0028373
2011	0.0017388
2012	0.0013815