| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 2 |
0.4%
|
| -1 | Don't know | 6 |
1.3%
|
| 1 | A great deal | 5 |
1.1%
|
| 2 | Quite a lot | 54 |
12.1%
|
| 3 | Not very much | 225 |
50.3%
|
| 4 | None at all | 155 |
34.7%
|