| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 20 |
1.7%
|
| -1 | Don't know | 148 |
12.3%
|
| 1 | A great deal | 122 |
10.2%
|
| 2 | Quite a lot | 150 |
12.5%
|
| 3 | Not very much | 247 |
20.6%
|
| 4 | None at all | 513 |
42.8%
|