Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 0.7 | 1 |
| 1991 | 0.72 | 1 |
| 1992 | 0.73 | 1 |
| 1993 | 0.74 | 1 |
| 1994 | 0.74 | 1 |
| 1995 | 0.85 | 1 |
| 1996 | 0.92 | 1 |
| 1997 | 0.93 | 1 |
| 1998 | 1.04 | 1 |
| 1999 | 1.17 | 1 |
| 2000 | 1.31 | 1 |
| 2001 | 1.4 | 1 |
| 2002 | 1.54 | 1 |
| 2003 | 1.72 | 1 |
| 2004 | 1.71 | 1 |
| 2005 | 1.69 | 1 |
| 2006 | 1.67 | 1 |
| 2007 | 1.64 | 1 |
| 2008 | 1.75 | 1 |
| 2009 | 1.88 | 1 |
Footnotes:
- Estimates are based on regression.
