| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2019 | 14 |
5.2%
|
| 2 | 2018 | 22 |
8.2%
|
| 3 | 2017 | 24 |
9%
|
| 4 | Before 2017 | 207 |
77.5%
|
| Sysmiss | 4277 |