| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 2010 | 1 |
0.4%
|
|
| 2016 | 1 |
0.4%
|
|
| 2017 | 8 |
3.4%
|
|
| 2018 | 2 |
0.8%
|
|
| 2019 | 12 |
5%
|
|
| 2020 | 12 |
5%
|
|
| 2021 | 15 |
6.3%
|
|
| 2022 | 21 |
8.8%
|
|
| 2023 | 77 |
32.4%
|
|
| 2024 | 88 |
37%
|
|
| Sysmiss | 164 |