| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 663 |
84.6%
|
| 2 | SOME DIFFICULTY | 88 |
11.2%
|
| 3 | A LOT OF DIFFICULTY | 9 |
1.1%
|
| 4 | CANNOT REMEMBER THINGS AT ALL | 3 |
0.4%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 20 |
2.6%
|