Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 1.52 | 1 |
| 1991 | 1.44 | 1 |
| 1992 | 1.52 | 1 |
| 1993 | 1.5 | 1 |
| 1994 | 1.64 | 1 |
| 1995 | 1.55 | 1 |
| 1996 | 1.59 | 1 |
| 1997 | 1.66 | 1 |
| 1998 | 1.67 | 1 |
| 1999 | 1.64 | 1 |
| 2000 | 1.6 | 1 |
| 2001 | 1.61 | 1 |
| 2002 | 1.72 | 1 |
| 2003 | 1.68 | 1 |
| 2004 | 1.9 | 1 |
| 2005 | 1.87 | 1 |
| 2006 | 1.88 | 1 |
| 2007 | 1.93 | 1 |
| 2008 | 2.08 | 1 |
| 2009 | 2.21 | 1 |
Footnotes:
- Estimates are based on regression.
