| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 4561 |
85.1%
|
| 2 | SOME DIFFICULTY | 681 |
12.7%
|
| 3 | A LOT OF DIFFICULTY | 97 |
1.8%
|
| 4 | CANNOT CONTROL BEHAVIOUR AT ALL | 18 |
0.3%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 1 |