Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 11.18 | 1 |
| 1991 | 13.5 | 1 |
| 1992 | 17.25 | 1 |
| 1993 | 20.2 | 1 |
| 1994 | 25.4 | 1 |
| 1995 | 32.07 | 1 |
| 1996 | 36.98 | 1 |
| 1997 | 38.2 | 1 |
| 1998 | 39.48 | 1 |
| 1999 | 39.66 | 1 |
| 2000 | 38.49 | 1 |
| 2001 | 39.02 | 1 |
| 2002 | 38.95 | 1 |
| 2003 | 39.07 | 1 |
| 2004 | 39.41 | 1 |
| 2005 | 38.74 | 1 |
| 2006 | 38.48 | 1 |
| 2007 | 38.73 | 1 |
| 2008 | 38.95 | 1 |
| 2009 | 41.34 | 1 |
Footnotes:
- Estimates are based on regression.
