| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 1 |
8.3%
|
|
| 2013 | 1 |
8.3%
|
|
| 2014 | 1 |
8.3%
|
|
| 2015 | 7 |
58.3%
|
|
| 2016 | 2 |
16.7%
|
|
| Sysmiss | 220 |