| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 2 |
5.7%
|
|
| 2006 | 2 |
5.7%
|
|
| 2018 | 1 |
2.9%
|
|
| 2019 | 9 |
25.7%
|
|
| 2020 | 4 |
11.4%
|
|
| 2022 | 2 |
5.7%
|
|
| 2023 | 6 |
17.1%
|
|
| 2024 | 4 |
11.4%
|
|
| 2025 | 3 |
8.6%
|
|
| 9998 | Don't know | 2 |
5.7%
|
| Sysmiss | 41977 |