| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 12 |
3.4%
|
|
| 2005 | 5 |
1.4%
|
|
| 2006 | 6 |
1.7%
|
|
| 2007 | 7 |
2%
|
|
| 2008 | 20 |
5.6%
|
|
| 2009 | 10 |
2.8%
|
|
| 2010 | 9 |
2.5%
|
|
| 2011 | 22 |
6.2%
|
|
| 2012 | 29 |
8.2%
|
|
| 2013 | 27 |
7.6%
|
|
| 2014 | 35 |
9.9%
|
|
| 2015 | 40 |
11.3%
|
|
| 2016 | 46 |
13%
|
|
| 2017 | 52 |
14.7%
|
|
| 2018 | 34 |
9.6%
|
|
| Sysmiss | 1293 |