| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 229 |
38.7%
|
| 2 | SOME DIFFICULTY | 32 |
5.4%
|
| 3 | A LOT OF DIFFICULTY | 8 |
1.4%
|
| 4 | CANNOT REMEMBER/CONCENTRATE AT ALL | 1 |
0.2%
|
| Sysmiss | 321 |
54.3%
|