| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 7 |
0.5%
|
| -1 | Don't know | 13 |
0.9%
|
| 1 | A great deal | 35 |
2.5%
|
| 2 | Quite a lot | 120 |
8.6%
|
| 3 | Not very much | 390 |
27.9%
|
| 4 | None at all | 835 |
59.6%
|