Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 1.67 | 1 |
| 1991 | 2.14 | 1 |
| 1992 | 2.28 | 1 |
| 1993 | 2.48 | 1 |
| 1994 | 2.68 | 1 |
| 1995 | 2.83 | 1 |
| 1996 | 3.05 | 1 |
| 1997 | 3.25 | 1 |
| 1998 | 3.43 | 1 |
| 1999 | 3.52 | 1 |
| 2000 | 3.61 | 1 |
| 2001 | 3.77 | 1 |
| 2002 | 4.01 | 1 |
| 2003 | 4.14 | 1 |
| 2004 | 4.33 | 1 |
| 2005 | 4.54 | 1 |
| 2006 | 4.68 | 1 |
| 2007 | 4.85 | 1 |
| 2008 | 5.26 | 1 |
| 2009 | 5.37 | 1 |
Footnotes:
- Estimates are based on regression.
