| Value | Category | Cases | |
|---|---|---|---|
| 6 | 1 |
1.3%
|
|
| 2017 | 21 |
27.6%
|
|
| 2018 | 47 |
61.8%
|
|
| 2019 | 7 |
9.2%
|
|
| Sysmiss | 677 |