Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 3.21 | 1 |
| 1991 | 3.2 | 1 |
| 1992 | 3.3 | 1 |
| 1993 | 3.55 | 1 |
| 1994 | 3.77 | 1 |
| 1995 | 3.86 | 1 |
| 1996 | 3.87 | 1 |
| 1997 | 3.92 | 1 |
| 1998 | 4.08 | 1 |
| 1999 | 4.13 | 1 |
| 2000 | 4.14 | 1 |
| 2001 | 4.25 | 1 |
| 2002 | 4.35 | 1 |
| 2003 | 4.42 | 1 |
| 2004 | 4.46 | 1 |
| 2005 | 4.61 | 1 |
| 2006 | 4.84 | 1 |
| 2007 | 5.08 | 1 |
| 2008 | 5.48 | 1 |
| 2009 | 5.88 | 1 |
Footnotes:
- Estimates are based on regression.
