| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 24561 |
69%
|
| 2 | Some difficulty | 7743 |
21.8%
|
| 3 | A lot of difficulty | 2941 |
8.3%
|
| 4 | Cannot control behaviour at all | 338 |
0.9%
|
| 9 | No response | 14 |
0%
|
| Sysmiss | 1455 |