| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 7 |
0.6%
|
| -1 | Don't know | 20 |
1.7%
|
| 1 | A great deal | 34 |
2.8%
|
| 2 | Quite a lot | 191 |
15.9%
|
| 3 | Not very much | 606 |
50.5%
|
| 4 | None at all | 342 |
28.5%
|