| Value | Category | Cases | |
|---|---|---|---|
| 1 | A great deal | 8 |
0.8%
|
| 2 | Quite a lot | 71 |
6.8%
|
| 3 | Not very much | 309 |
29.5%
|
| 4 | None at all | 563 |
53.8%
|
| Sysmiss | 95 |
9.1%
|