| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 12 |
1%
|
| -1 | Don't know | 42 |
3.3%
|
| 1 | A great deal | 25 |
2%
|
| 2 | Quite a lot | 78 |
6.2%
|
| 3 | Not very much | 444 |
35.3%
|
| 4 | None at all | 656 |
52.2%
|