| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 6514 |
84.2%
|
| 2 | SOME DIFFICULTY | 438 |
5.7%
|
| 3 | A LOT OF DIFFICULTY | 17 |
0.2%
|
| 4 | CANNOT REMEMBER/CONCENTRATE AT ALL | 1 |
0%
|
| 9 | NO RESPONSE | 3 |
0%
|
| Sysmiss | 759 |
9.8%
|