| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 |
0.1%
|
| -1 | Don't know | 15 |
1.3%
|
| 1 | None of them | 19 |
1.6%
|
| 2 | Few of them | 282 |
23.5%
|
| 3 | Most of them | 611 |
50.9%
|
| 4 | All of them | 272 |
22.7%
|