| Value | Category | Cases | |
|---|---|---|---|
| 2015 | 453 |
42.7%
|
|
| 2016 | 124 |
11.7%
|
|
| 2017 | 20 |
1.9%
|
|
| 2018 | 360 |
33.9%
|
|
| 2019 | 91 |
8.6%
|
|
| 2020 | 12 |
1.1%
|
|
| 2021 | 2 |
0.2%
|
|
| Sysmiss | 682 |