| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 311 |
25.9%
|
| 1 | A great deal | 251 |
20.9%
|
| 2 | Quite a lot | 580 |
48.3%
|
| 3 | Not very much | 52 |
4.3%
|
| 4 | None at all | 6 |
0.5%
|