Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 255.72 | |
| 1991 | 241.21 | |
| 1992 | 224.9 | |
| 1993 | 229.21 | |
| 1994 | 318.19 | |
| 1995 | 338.66 | |
| 1996 | 362.02 | |
| 1998 | 397.76 | |
| 1999 | 405.37 | |
| 2000 | 388.67 | |
| 2001 | 378.2 | |
| 2002 | 388.59 | |
| 2003 | 377.57 | |
| 2004 | 376.66 | |
| 2005 | 375.57 | |
| 2006 | 387.62 | |
| 2007 | 386.88 | |
| 2008 | 399.9 | |
| 2009 | 421.54 |
