| Value | Category | Cases | |
|---|---|---|---|
| 2003 | 7 |
7.3%
|
|
| 2004 | 3 |
3.1%
|
|
| 2005 | 5 |
5.2%
|
|
| 2006 | 7 |
7.3%
|
|
| 2007 | 3 |
3.1%
|
|
| 2008 | 6 |
6.3%
|
|
| 2009 | 1 |
1%
|
|
| 2010 | 4 |
4.2%
|
|
| 2011 | 4 |
4.2%
|
|
| 2012 | 4 |
4.2%
|
|
| 2013 | 13 |
13.5%
|
|
| 2014 | 7 |
7.3%
|
|
| 2015 | 32 |
33.3%
|
|
| Sysmiss | 2532 |