Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 485.98 | |
| 1991 | 411.75 | |
| 1992 | 361.51 | |
| 1993 | 353.02 | |
| 1994 | 468.3 | |
| 1995 | 499.47 | |
| 1996 | 488.59 | |
| 1997 | 496.4 | |
| 1998 | 495.89 | |
| 1999 | 475.88 | |
| 2000 | 462.66 | |
| 2001 | 459.56 | |
| 2002 | 452.55 | |
| 2003 | 452.4 | |
| 2004 | 442.4 | |
| 2005 | 443.75 | |
| 2006 | 423.82 | |
| 2007 | 432.8 | |
| 2008 | 438.74 | |
| 2009 | 448.6 |
