| Дата | Значение | Изменение, % |
|---|---|---|
| 2005 | 1 383,70 | -13,63% |
| 2004 | 1 602,00 | 28,99% |
| 2003 | 1 242,00 | -2,36% |
| 2002 | 1 272,00 | -7,63% |
| 2001 | 1 377,00 | 5,76% |
| 2000 | 1 302,00 | -0,84% |
| 1999 | 1 313,00 | 9,97% |
| 1998 | 1 194,00 | -21,03% |
| 1997 | 1 512,00 | 14,63% |
| 1996 | 1 319,00 | -12,76% |
| 1995 | 1 512,00 | -45,08% |
| 1990 | 2 753,00 |