| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 3699 |
95.1%
|
| 2 | SOME DIFFICULTY | 171 |
4.4%
|
| 3 | A LOT OF DIFFICULTY | 11 |
0.3%
|
| 4 | CANNOT CONTROL BEHAVIOUR AT ALL | 9 |
0.2%
|
| 9 | NO RESPONSE | 0 |
0%
|
| Sysmiss | 7 |