| Value | Category | Cases | |
|---|---|---|---|
| 2006 | 1 |
2.7%
|
|
| 2007 | 1 |
2.7%
|
|
| 2009 | 2 |
5.4%
|
|
| 2010 | 2 |
5.4%
|
|
| 2011 | 3 |
8.1%
|
|
| 2012 | 9 |
24.3%
|
|
| 2013 | 14 |
37.8%
|
|
| 2014 | 5 |
13.5%
|
|
| Sysmiss | 5738 |