| Omzet | |
|---|---|
| 2015 | 93.717.173,67 € |
| 2014 | 102.503.402,55 € |
| 2013 | 117.181.559,92 € |
| 2012 | 121.984.547,15 € |
| 2011 | 125.073.072,33 € |
| 2010 | 107.478.699,41 € |
| 2009 | 99.420.765,17 € |
| 2008 | 105.178.821,29 € |
| 2007 | 91.829.454,21 € |
| 2006 | 81.831.221,45 € |
| 2005 | 77.404.899,86 € |
| 2004 | 69.076.959,87 € |
| 2003 | 52.046.184,63 € |
Meer details over de 
omzet per sector (PDF, 133.02 KB).