Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 282.44 | |
| 1991 | 263.48 | |
| 1992 | 253.09 | |
| 1993 | 238.66 | |
| 1994 | 289.75 | |
| 1995 | 335.93 | |
| 1996 | 338.52 | |
| 1997 | 336.12 | |
| 1998 | 324.74 | |
| 1999 | 313.29 | |
| 2000 | 312.77 | |
| 2001 | 315.83 | |
| 2002 | 318.15 | |
| 2003 | 323.95 | |
| 2004 | 308.99 | |
| 2005 | 307.47 | |
| 2006 | 317.8 | |
| 2007 | 311.85 | |
| 2008 | 328.17 | |
| 2009 | 340.94 |
