| Value | Category | Cases | |
|---|---|---|---|
| 2006 | 1 |
5.3%
|
|
| 2010 | 1 |
5.3%
|
|
| 2011 | 1 |
5.3%
|
|
| 2012 | 1 |
5.3%
|
|
| 2013 | 3 |
15.8%
|
|
| 2014 | 9 |
47.4%
|
|
| 2015 | 3 |
15.8%
|
|
| Sysmiss | 1173 |