| Дата | Значение | Изменение, % |
|---|---|---|
| 2012 | 29 994,00 | -4,44% |
| 2011 | 31 386,00 | -3,25% |
| 2010 | 32 440,00 | 1,04% |
| 2009 | 32 107,00 | -1,09% |
| 2008 | 32 461,00 | -0,23% |
| 2007 | 32 536,00 | 0,06% |
| 2006 | 32 516,00 | 2,68% |
| 2005 | 31 668,00 | 1,66% |
| 2004 | 31 149,60 | 3,71% |
| 2003 | 30 035,00 | 0,57% |
| 2002 | 29 863,70 | 1,55% |
| 2001 | 29 408,90 |