| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 13 |
1.1%
|
| -1 | Don't know | 73 |
6.1%
|
| 1 | A great deal | 15 |
1.3%
|
| 2 | Quite a lot | 169 |
14.1%
|
| 3 | Not very much | 419 |
34.9%
|
| 4 | None at all | 511 |
42.6%
|