| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 2010 | 1 |
1.5%
|
|
| 2019 | 1 |
1.5%
|
|
| 2021 | 4 |
6%
|
|
| 2022 | 7 |
10.4%
|
|
| 2023 | 33 |
49.3%
|
|
| 2024 | 21 |
31.3%
|
|
| Sysmiss | 85 |