| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 1 |
0.1%
|
|
| 2017 | 4 |
0.2%
|
|
| 2018 | 851 |
52%
|
|
| 2019 | 761 |
46.5%
|
|
| 2020 | 19 |
1.2%
|
|
| Sysmiss | 1493 |