| Data | Valor | Modificar, % |
|---|---|---|
| 2016 | 28.323,8 | 1,42% |
| 2015 | 27.926,0 | 0,51% |
| 2014 | 27.784,7 | -0,72% |
| 2013 | 27.985,0 | -2,81% |
| 2012 | 28.793,6 | -4,44% |
| 2011 | 30.131,7 | 0,76% |
| 2010 | 29.904,2 | -0,48% |
| 2009 | 30.048,1 | -2,39% |
| 2008 | 30.782,4 | -0,60% |
| 2007 | 30.967,7 | 3,51% |
| 2006 | 29.918,2 | 2,02% |
| 2005 | 29.325,9 |