| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 33 |
2.8%
|
| 1 | A great deal | 76 |
6.3%
|
| 2 | Quite a lot | 494 |
41.2%
|
| 3 | Not very much | 441 |
36.8%
|
| 4 | None at all | 156 |
13%
|