| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 38 |
3.2%
|
| 1 | A great deal | 206 |
17.2%
|
| 2 | Quite a lot | 836 |
69.7%
|
| 3 | Not very much | 106 |
8.8%
|
| 4 | None at all | 14 |
1.2%
|