Year	$ 2011 PPP (USD)
1991	0.0212474
1992	0.0502191
1993	0.0466121
1994	0.0133852
1995	0.0090295
1996	0.0104529
1997	0.0055349
2002	0.0123022
2003	0.0125834
2004	0.012185