| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 1 |
0.3%
|
|
| 2015 | 3 |
0.9%
|
|
| 2016 | 10 |
3.1%
|
|
| 2017 | 19 |
5.8%
|
|
| 2018 | 32 |
9.8%
|
|
| 2019 | 192 |
58.9%
|
|
| 2020 | 69 |
21.2%
|
|
| Sysmiss | 6753 |