Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 257.85 | |
| 1991 | 280.63 | |
| 1992 | 299.25 | |
| 1993 | 308.88 | |
| 1994 | 321.46 | |
| 1995 | 373.95 | |
| 1996 | 410.62 | |
| 1997 | 511.61 | |
| 1998 | 962.15 | |
| 1999 | 2150.67 | |
| 2000 | 2602.29 | |
| 2001 | 2728.46 | |
| 2002 | 2971.41 | |
| 2003 | 3355.48 | |
| 2004 | 3609.9 | |
| 2005 | 3741.62 | |
| 2006 | 3871.31 | |
| 2007 | 3934.09 | |
| 2008 | 4077.68 | |
| 2009 | 4093.67 |
