Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 204.94 | |
| 1991 | 200.86 | |
| 1992 | 191.07 | |
| 1993 | 186.62 | |
| 1994 | 227.67 | |
| 1995 | 237.98 | |
| 1996 | 245.3 | |
| 1997 | 245.26 | |
| 1998 | 253.79 | |
| 1999 | 245.69 | |
| 2000 | 236.94 | |
| 2001 | 241.97 | |
| 2002 | 243.37 | |
| 2003 | 242.81 | |
| 2004 | 235.53 | |
| 2005 | 242.42 | |
| 2006 | 240.32 | |
| 2007 | 233.12 | |
| 2008 | 248.43 | |
| 2009 | 255.82 |
