| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2014 | 0 |
0%
|
| 2 | 2015 | 1 |
4.5%
|
| 3 | 2016 | 18 |
81.8%
|
| d | 2 |
9.1%
|
|
| r | 1 |
4.5%
|
|
| Sysmiss | 903 |