| Value | Category | Cases | |
|---|---|---|---|
| 2003 | 5 |
2.6%
|
|
| 2004 | 7 |
3.7%
|
|
| 2005 | 7 |
3.7%
|
|
| 2006 | 8 |
4.2%
|
|
| 2007 | 3 |
1.6%
|
|
| 2008 | 7 |
3.7%
|
|
| 2009 | 12 |
6.3%
|
|
| 2010 | 17 |
8.9%
|
|
| 2011 | 8 |
4.2%
|
|
| 2012 | 17 |
8.9%
|
|
| 2013 | 21 |
11%
|
|
| 2014 | 35 |
18.3%
|
|
| 2015 | 44 |
23%
|
|
| Sysmiss | 2437 |