Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1995 | 4.66 | |
| 1996 | 5.97 | |
| 1997 | 7.2 | |
| 1998 | 7.84 | |
| 1999 | 10.51 | |
| 2000 | 12.07 | |
| 2001 | 12.55 | |
| 2002 | 12.61 | |
| 2003 | 12.7 | |
| 2004 | 12.88 | |
| 2005 | 13 | |
| 2006 | 13.29 | |
| 2007 | 14.24 | |
| 2008 | 17.07 | |
| 2009 | 18.31 |
