| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 59 |
9.3%
|
|
| 2005 | 40 |
6.3%
|
|
| 2006 | 50 |
7.9%
|
|
| 2008 | 27 |
4.3%
|
|
| 2009 | 157 |
24.8%
|
|
| 2010 | 50 |
7.9%
|
|
| 2012 | 69 |
10.9%
|
|
| 2013 | 90 |
14.2%
|
|
| 2014 | 33 |
5.2%
|
|
| 2016 | 27 |
4.3%
|
|
| 2017 | 32 |
5%
|
|
| Sysmiss | 706 |