Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 0 | |
| 1991 | 0 | |
| 1992 | 0 | |
| 1993 | 0 | |
| 1994 | 0 | |
| 1995 | 0 | |
| 1996 | 0.05 | |
| 1997 | 0.15 | |
| 1998 | 0.31 | |
| 1999 | 1.05 | |
| 2000 | 4.33 | |
| 2001 | 10.64 | |
| 2002 | 21.88 | |
| 2003 | 42.41 | |
| 2004 | 59.28 | |
| 2005 | 70.5 | |
| 2006 | 77.39 | |
| 2007 | 84.46 | |
| 2008 | 91.48 | |
| 2009 | 104.41 |
