| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2011 | 5 |
3.1%
|
| 2 | 2012 | 11 |
6.7%
|
| 3 | 2013 | 127 |
77.9%
|
| 4 | 2014 | 20 |
12.3%
|
| Sysmiss | 1337 |