Year	$ 2011 PPP (USD)
1998	0.0058545
1999	0.0053699
2000	0.0041831
2001	0.0039463
2002	0.0061237
2003	0.0047912
2004	0.0020521
2005	0.0010044
2006	0.0004202
2007	0.0002102
2008	0.0001308
2009	0.0001473
2010	1.68E-05
2011	6.97E-07
2012	2.85E-05