| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 13 |
1.1%
|
| -1 | Don't know | 62 |
5.2%
|
| 1 | None of them | 56 |
4.7%
|
| 2 | Few of them | 882 |
73.5%
|
| 3 | Most of them | 170 |
14.2%
|
| 4 | All of them | 17 |
1.4%
|