| Value | Category | Cases | |
|---|---|---|---|
| -5 | Missing; Unknown | 8 |
0.8%
|
| 1 | A great deal | 163 |
15.9%
|
| 2 | Quite a lot | 668 |
65.3%
|
| 3 | Not very much | 164 |
16%
|
| 4 | None at all | 20 |
2%
|