| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 1 |
4.2%
|
|
| 2014 | 4 |
16.7%
|
|
| 2015 | 7 |
29.2%
|
|
| 2016 | 12 |
50%
|
|
| Sysmiss | 12859 |