| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 7014 |
92%
|
| 2 | SOME DIFFICULTY | 374 |
4.9%
|
| 3 | A LOT OF DIFFICULTY | 39 |
0.5%
|
| 4 | CANNOT REMEMBER THINGS AT ALL | 16 |
0.2%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 183 |
2.4%
|