Year	$ 2011 PPP (USD)
1999	0.0358778
2000	0.0351867
2001	0.0304921
2002	0.0269305
2003	0.0226814
2004	0.0164375
2005	0.0267915
2006	0.0169499
2007	0.0084671
2008	0.0090393
2009	0.0075093
2010	0.0086558
2011	0.0044371
2012	0.0038191
2013	0.002668