Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 266.62 | |
| 1991 | 260.4 | |
| 1992 | 236.96 | |
| 1993 | 229.56 | |
| 1994 | 275.58 | |
| 1995 | 304.1 | |
| 1996 | 315.54 | |
| 1997 | 307.21 | |
| 1998 | 314.73 | |
| 1999 | 304.29 | |
| 2000 | 292.36 | |
| 2001 | 299.07 | |
| 2002 | 309.21 | |
| 2003 | 298.28 | |
| 2004 | 281.5 | |
| 2005 | 289.68 | |
| 2006 | 284.96 | |
| 2007 | 280.97 | |
| 2008 | 295.39 | |
| 2009 | 302.97 |
