| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2019 | 25 |
26.9%
|
| 2 | 2018 | 20 |
21.5%
|
| 3 | 2017 | 16 |
17.2%
|
| 4 | Before 2017 | 32 |
34.4%
|
| Sysmiss | 4451 |