| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2019 | 3 |
21.4%
|
| 2 | 2018 | 0 |
0%
|
| 3 | 2017 | 8 |
57.1%
|
| 4 | Before 2017 | 3 |
21.4%
|
| Sysmiss | 4530 |