| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2019 | 14 |
28%
|
| 2 | 2018 | 14 |
28%
|
| 3 | 2017 | 7 |
14%
|
| 4 | Before 2017 | 15 |
30%
|
| Sysmiss | 4494 |