| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 5 |
0.2%
|
| -1 | Don't know | 98 |
4.7%
|
| 1 | A great deal | 54 |
2.6%
|
| 2 | Quite a lot | 137 |
6.6%
|
| 3 | Not very much | 970 |
46.9%
|
| 4 | None at all | 803 |
38.8%
|