| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 7 |
5.9%
|
|
| 2017 | 7 |
5.9%
|
|
| 2018 | 17 |
14.3%
|
|
| 2019 | 25 |
21%
|
|
| 2020 | 63 |
52.9%
|
|
| Sysmiss | 493 |