| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 2 |
0.1%
|
| 1 | Only a litle | 17 |
1.3%
|
| 2 | Quite a lot | 36 |
2.7%
|
| 3 | A great deal | 15 |
1.1%
|
| 99 | N/A | 1264 |
94.8%
|
| Sysmiss | 247 |