| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 7 |
0.6%
|
| -1 | Don't know | 33 |
2.7%
|
| 1 | A great deal | 42 |
3.4%
|
| 2 | Quite a lot | 191 |
15.6%
|
| 3 | Not very much | 368 |
30.1%
|
| 4 | None at all | 582 |
47.6%
|