| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 19538 |
87%
|
| 2 | SOME DIFFICULTY | 2534 |
11.3%
|
| 3 | A LOT OF DIFFICULTY | 347 |
1.5%
|
| 4 | CANNOT CONTROL BEHAVIOUR AT ALL | 31 |
0.1%
|
| 9 | NO RESPONSE | 4 |
0%
|
| Sysmiss | 252 |