Academic year
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| Missing | -9 | 0 | 0.00% |
| 2002 | 258 | 2.81% | |
| 2003 | 320 | 3.49% | |
| 2004 | 308 | 3.36% | |
| 2005 | 321 | 3.50% | |
| 2006 | 375 | 4.09% | |
| 2007 | 443 | 4.83% | |
| 2008 | 493 | 5.38% | |
| 2009 | 593 | 6.47% | |
| 2010 | 658 | 7.18% | |
| 2011 | 800 | 8.73% | |
| 2012 | 842 | 9.19% | |
| 2013 | 869 | 9.48% | |
| 2014 | 497 | 5.42% | |
| 2015 | 684 | 7.46% | |
| 2016 | 385 | 4.20% | |
| 2017 | 774 | 8.44% | |
| 2018 | 546 | 5.96% | |
| Total | 9166 | 100.00% |



