| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2011 | 8 |
3%
|
| 2 | 2012 | 165 |
62.5%
|
| 3 | 2013 | 54 |
20.5%
|
| 4 | 2014 | 37 |
14%
|
| Sysmiss | 1236 |