| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 15 |
1.3%
|
| -1 | Don't know | 102 |
8.5%
|
| 1 | A great deal | 19 |
1.6%
|
| 2 | Quite a lot | 130 |
10.8%
|
| 3 | Not very much | 424 |
35.3%
|
| 4 | None at all | 510 |
42.5%
|