Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 147.82 | |
| 1991 | 154 | |
| 1992 | 171.16 | |
| 1993 | 182.89 | |
| 1994 | 247.66 | |
| 1995 | 359.13 | |
| 1996 | 417.83 | |
| 1997 | 426.61 | |
| 1998 | 446.16 | |
| 1999 | 479.96 | |
| 2000 | 519.35 | |
| 2001 | 540.12 | |
| 2002 | 616.39 | |
| 2003 | 595.33 | |
| 2004 | 659.88 | |
| 2005 | 756.38 | |
| 2006 | 811.68 | |
| 2007 | 870.45 | |
| 2008 | 915.59 | |
| 2009 | 1001.16 |
