As of January 1 of the next year.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2012 | 498,5 | -0,20% |
| 2011 | 499,5 | -0,14% |
| 2010 | 500,2 | -0,22% |
| 2009 | 501,3 | -0,44% |
| 2008 | 503,5 | -0,53% |
| 2007 | 506,2 | -0,61% |
| 2006 | 509,3 | -0,76% |
| 2005 | 513,2 | -1,04% |
| 2004 | 518,6 | -0,76% |
| 2003 | 522,6 | -0,42% |
| 2002 | 524,8 |