Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1992 | 0.02 | |
| 1993 | 0.17 | |
| 1994 | 0.68 | |
| 1995 | 1.98 | |
| 1996 | 2.86 | |
| 1997 | 3.29 | |
| 1998 | 3.96 | |
| 1999 | 6.86 | |
| 2000 | 7.56 | |
| 2001 | 8.89 | |
| 2002 | 10.05 | |
| 2003 | 11.03 | |
| 2004 | 12.31 | |
| 2005 | 13.39 | |
| 2006 | 13.61 | |
| 2007 | 14.38 | |
| 2008 | 15.07 | |
| 2009 | 15.42 |
