| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 16 |
1.3%
|
| -1 | Don't know | 64 |
5.3%
|
| 1 | None of them | 50 |
4.2%
|
| 2 | Few of them | 916 |
76.3%
|
| 3 | Most of them | 139 |
11.6%
|
| 4 | All of them | 15 |
1.3%
|