| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2019 | 12 |
41.4%
|
| 2 | 2018 | 5 |
17.2%
|
| 3 | 2017 | 6 |
20.7%
|
| 4 | Before 2017 | 6 |
20.7%
|
| Sysmiss | 4515 |