| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1918 |
71.8%
|
| 2 | SOME DIFFICULTY | 290 |
10.8%
|
| 3 | A LOT OF DIFFICULTY | 30 |
1.1%
|
| 4 | CANNOT REMEMBER/CONCENTRATE AT ALL | 3 |
0.1%
|
| 9 | NO RESPONSE | 2 |
0.1%
|
| Sysmiss | 430 |
16.1%
|