| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 2000 | 2 |
0.9%
|
|
| 2007 | 1 |
0.4%
|
|
| 2008 | 2 |
0.9%
|
|
| 2009 | 1 |
0.4%
|
|
| 2010 | 1 |
0.4%
|
|
| 2013 | 1 |
0.4%
|
|
| 2014 | 1 |
0.4%
|
|
| 2015 | 1 |
0.4%
|
|
| 2016 | 2 |
0.9%
|
|
| 2017 | 1 |
0.4%
|
|
| 2018 | 5 |
2.2%
|
|
| 2019 | 3 |
1.3%
|
|
| 2020 | 6 |
2.6%
|
|
| 2021 | 10 |
4.3%
|
|
| 2022 | 33 |
14.3%
|
|
| 2023 | 62 |
27%
|
|
| 2024 | 94 |
40.9%
|
|
| 2025 | 3 |
1.3%
|
|
| Sysmiss | 130 |