| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 35 |
9.4%
|
| 1994 | 1 |
0.3%
|
|
| 2005 | 1 |
0.3%
|
|
| 2009 | 1 |
0.3%
|
|
| 2010 | 1 |
0.3%
|
|
| 2011 | 1 |
0.3%
|
|
| 2012 | 1 |
0.3%
|
|
| 2014 | 4 |
1.1%
|
|
| 2015 | 1 |
0.3%
|
|
| 2017 | 2 |
0.5%
|
|
| 2018 | 1 |
0.3%
|
|
| 2019 | 12 |
3.2%
|
|
| 2020 | 5 |
1.3%
|
|
| 2021 | 18 |
4.8%
|
|
| 2022 | 26 |
7%
|
|
| 2023 | 93 |
24.9%
|
|
| 2024 | 166 |
44.5%
|
|
| 2025 | 4 |
1.1%
|
|
| Sysmiss | 239 |