| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 4941 |
84.5%
|
| 2 | SOME DIFFICULTY | 707 |
12.1%
|
| 3 | A LOT OF DIFFICULTY | 61 |
1%
|
| 4 | CANNOT REMEMBER THINGS AT ALL | 5 |
0.1%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 134 |
2.3%
|