Academic year
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| Missing | -9 | 0 | 0.00% |
| 1998 | 218 | 2.80% | |
| 1999 | 262 | 3.36% | |
| 2000 | 311 | 3.99% | |
| 2001 | 329 | 4.22% | |
| 2002 | 369 | 4.73% | |
| 2003 | 421 | 5.40% | |
| 2004 | 445 | 5.71% | |
| 2005 | 510 | 6.54% | |
| 2006 | 564 | 7.23% | |
| 2007 | 613 | 7.86% | |
| 2008 | 622 | 7.98% | |
| 2009 | 651 | 8.35% | |
| 2010 | 635 | 8.14% | |
| 2011 | 655 | 8.40% | |
| 2012 | 587 | 7.53% | |
| 2013 | 607 | 7.78% | |
| Total | 7799 | 100.00% |



