Academic year
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| 2008 | 496 | 9.62% | |
| 2009 | 498 | 9.66% | |
| 2010 | 488 | 9.46% | |
| 2011 | 497 | 9.64% | |
| 2012 | 496 | 9.62% | |
| 2013 | 491 | 9.52% | |
| 2014 | 478 | 9.27% | |
| 2015 | 456 | 8.84% | |
| 2016 | 432 | 8.38% | |
| 2017 | 423 | 8.2% | |
| 2018 | 401 | 7.78% | |
| Total | 5156 | 100.0% |



