Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 81.95 | |
| 1991 | 84.19 | |
| 1992 | 84.7 | |
| 1993 | 85.91 | |
| 1994 | 85.54 | |
| 1995 | 85.53 | |
| 1996 | 87.33 | |
| 1997 | 85.67 | |
| 1998 | 88.05 | |
| 1999 | 86.91 | |
| 2000 | 93.43 | |
| 2001 | 99.06 | |
| 2002 | 102.47 | |
| 2003 | 104.57 | |
| 2004 | 104.08 | |
| 2005 | 104.18 | |
| 2006 | 109.15 | |
| 2007 | 112.08 | |
| 2008 | 123.74 | |
| 2009 | 137.48 |
