| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 350 |
29.1%
|
| 1 | A great deal | 58 |
4.8%
|
| 2 | Quite a lot | 146 |
12.1%
|
| 3 | Not very much | 211 |
17.5%
|
| 4 | None at all | 438 |
36.4%
|