| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 12 |
0.9%
|
| -1 | Don't know | 68 |
4.9%
|
| 1 | A great deal | 31 |
2.2%
|
| 2 | Quite a lot | 129 |
9.2%
|
| 3 | Not very much | 425 |
30.4%
|
| 4 | None at all | 735 |
52.5%
|