Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1992 | 0.12 | |
| 1993 | 0.62 | |
| 1994 | 1.03 | |
| 1995 | 1.4 | |
| 1996 | 1.62 | |
| 1997 | 1.73 | |
| 1998 | 1.81 | |
| 1999 | 1.77 | |
| 2000 | 1.74 | |
| 2001 | 1.72 | |
| 2002 | 1.66 | |
| 2003 | 1.57 | |
| 2004 | 1.6 | |
| 2005 | 1.64 | |
| 2006 | 1.7 | |
| 2007 | 1.77 | |
| 2008 | 1.88 | |
| 2009 | 1.84 |
