| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 79 |
8.4%
|
| 2000 | 1 |
0.1%
|
|
| 2010 | 2 |
0.2%
|
|
| 2012 | 1 |
0.1%
|
|
| 2014 | 2 |
0.2%
|
|
| 2015 | 5 |
0.5%
|
|
| 2016 | 12 |
1.3%
|
|
| 2017 | 13 |
1.4%
|
|
| 2018 | 76 |
8%
|
|
| 2019 | 62 |
6.6%
|
|
| 2020 | 81 |
8.6%
|
|
| 2021 | 337 |
35.6%
|
|
| 2022 | 148 |
15.6%
|
|
| 2023 | 127 |
13.4%
|
|
| Sysmiss | 376 |