| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 3 |
3.5%
|
|
| 2017 | 2 |
2.4%
|
|
| 2018 | 9 |
10.6%
|
|
| 2019 | 16 |
18.8%
|
|
| 2020 | 55 |
64.7%
|
|
| Sysmiss | 325 |