| Value | Category | Cases | |
|---|---|---|---|
| -1 | missing | 0 |
0%
|
| 0 | none | 4684 |
8.8%
|
| 1 | some of them | 21372 |
40%
|
| 2 | most of them | 15537 |
29.1%
|
| 3 | all of them | 9418 |
17.6%
|
| 8 | refused | 155 |
0.3%
|
| 9 | don't know/ haven’t heard | 2278 |
4.3%
|