| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 4 |
0.3%
|
| -1 | Don't know | 15 |
1.3%
|
| 1 | A great deal | 16 |
1.3%
|
| 2 | Quite a lot | 142 |
11.8%
|
| 3 | Not very much | 440 |
36.7%
|
| 4 | None at all | 583 |
48.6%
|