| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 29 |
3.1%
|
|
| 2005 | 37 |
3.9%
|
|
| 2006 | 52 |
5.5%
|
|
| 2007 | 33 |
3.5%
|
|
| 2008 | 61 |
6.5%
|
|
| 2009 | 43 |
4.6%
|
|
| 2010 | 57 |
6%
|
|
| 2011 | 86 |
9.1%
|
|
| 2012 | 101 |
10.7%
|
|
| 2013 | 136 |
14.4%
|
|
| 2014 | 145 |
15.4%
|
|
| 2015 | 164 |
17.4%
|
|
| Sysmiss | 1643 |