Academic year
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| Missing | -9 | 0 | 0.00% |
| 1996 | 249 | 2.30% | |
| 1997 | 297 | 2.74% | |
| 1998 | 332 | 3.07% | |
| 1999 | 368 | 3.40% | |
| 2000 | 419 | 3.87% | |
| 2001 | 442 | 4.08% | |
| 2002 | 503 | 4.65% | |
| 2003 | 548 | 5.06% | |
| 2004 | 609 | 5.63% | |
| 2005 | 625 | 5.77% | |
| 2006 | 647 | 5.98% | |
| 2007 | 618 | 5.71% | |
| 2008 | 642 | 5.93% | |
| 2009 | 564 | 5.21% | |
| 2010 | 582 | 5.38% | |
| 2011 | 497 | 4.59% | |
| 2012 | 437 | 4.04% | |
| 2013 | 490 | 4.53% | |
| 2014 | 397 | 3.67% | |
| 2015 | 389 | 3.59% | |
| 2016 | 424 | 3.92% | |
| 2017 | 380 | 3.51% | |
| 2018 | 365 | 3.37% | |
| Total | 10824 | 100.00% |



