| Value | Category | Cases | |
|---|---|---|---|
| 2014 | 1 |
0.3%
|
|
| 2015 | 2 |
0.7%
|
|
| 2016 | 43 |
14.4%
|
|
| 2017 | 66 |
22.1%
|
|
| 2018 | 107 |
35.9%
|
|
| 2019 | 79 |
26.5%
|
|
| Sysmiss | 712 |