| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 15 |
1.5%
|
| -1 | Don't know | 143 |
14.3%
|
| 1 | A great deal | 12 |
1.2%
|
| 2 | Quite a lot | 120 |
12%
|
| 3 | Not very much | 285 |
28.4%
|
| 4 | None at all | 428 |
42.7%
|