| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 |
0.2%
|
| -1 | Don't know | 10 |
2.2%
|
| 1 | None of them | 68 |
15.2%
|
| 2 | Few of them | 302 |
67.6%
|
| 3 | Most of them | 49 |
11%
|
| 4 | All of them | 17 |
3.8%
|