| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 3178 |
80.1%
|
| 2 | Some difficulty | 636 |
16%
|
| 3 | A lot of difficulty | 133 |
3.4%
|
| 4 | Cannot control behaviour at all | 16 |
0.4%
|
| 9 | No response | 4 |
0.1%
|
| Sysmiss | 362 |