Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 1154.45 | |
| 1991 | 1211.77 | |
| 1992 | 1264.72 | |
| 1993 | 1347.41 | |
| 1994 | 1425.06 | |
| 1995 | 1516.94 | |
| 1996 | 1591.2 | |
| 1997 | 1651.71 | |
| 1998 | 2576.11 | |
| 1999 | 3037.47 | |
| 2000 | 3047.51 | |
| 2001 | 3304.69 | |
| 2002 | 3639.53 | |
| 2003 | 3793.11 | |
| 2004 | 3924.85 | |
| 2005 | 4192.83 | |
| 2006 | 4594.31 | |
| 2007 | 4749.22 | |
| 2008 | 5035.48 | |
| 2009 | 5375.92 |
