Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 236.16 | |
| 1991 | 208.9 | |
| 1992 | 193.68 | |
| 1993 | 185.84 | |
| 1994 | 246.4 | |
| 1995 | 264.99 | |
| 1996 | 271.06 | |
| 1997 | 272.64 | |
| 1998 | 280.68 | |
| 1999 | 268.35 | |
| 2000 | 267.11 | |
| 2001 | 270.18 | |
| 2002 | 272.95 | |
| 2003 | 262.58 | |
| 2004 | 256.41 | |
| 2005 | 267.33 | |
| 2006 | 259.08 | |
| 2007 | 252.03 | |
| 2008 | 270.15 | |
| 2009 | 282.79 |
