Year	$ 2011 PPP (USD)
1996	0.0021128
2001	0.0093785
2002	0.0080141
2003	0.0074692
2004	0.0062119
2005	0.0004015
2006	0.0019919
2007	0.0014479
2008	0.000998
2009	0.0005838
2010	0.0005273
2011	0.000114
2012	8.19E-05
2013	8.52E-05