| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 5 |
0.5%
|
| 1 | Only a little | 50 |
5.2%
|
| 2 | Quite a lot | 45 |
4.7%
|
| 3 | A great deal | 26 |
2.7%
|
| 88 | N/A | 833 |
86.9%
|
| 99 | N/A | 0 |
0%
|
| Sysmiss | 622 |