Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1993 | 0.53 | |
| 1994 | 10.29 | |
| 1995 | 27.64 | |
| 1996 | 37.38 | |
| 1997 | 42.88 | |
| 1998 | 45.24 | |
| 1999 | 47.95 | |
| 2000 | 52.49 | |
| 2001 | 55.32 | |
| 2002 | 57.63 | |
| 2003 | 59.98 | |
| 2004 | 62.44 | |
| 2005 | 64.96 | |
| 2006 | 68.34 | |
| 2007 | 73.6 | |
| 2008 | 83.04 | |
| 2009 | 89.42 |
