Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 0 | |
| 1991 | 0 | |
| 1992 | 0 | |
| 1993 | 0.01 | |
| 1994 | 0.02 | |
| 1995 | 0.03 | |
| 1996 | 0.05 | |
| 1997 | 0.57 | |
| 1998 | 0.65 | |
| 1999 | 0.66 | |
| 2000 | 0.67 | |
| 2001 | 0.71 | |
| 2002 | 0.7 | |
| 2003 | 0.69 | |
| 2004 | 0.71 | |
| 2005 | 0.73 | |
| 2006 | 0.75 | |
| 2007 | 0.76 | |
| 2008 | 0.8 | |
| 2009 | 0.78 |
