| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 6 |
0.5%
|
| 1 | A great deal | 152 |
12.7%
|
| 2 | Quite a lot | 500 |
41.7%
|
| 3 | Not very much | 392 |
32.7%
|
| 4 | None at all | 150 |
12.5%
|