| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 546 |
69.6%
|
| 2 | SOME DIFFICULTY | 155 |
19.8%
|
| 3 | A LOT OF DIFFICULTY | 32 |
4.1%
|
| 4 | CANNOT LEAR THINGS AT ALL | 15 |
1.9%
|
| 9 | NO RESPONSE | 16 |
2%
|
| Sysmiss | 20 |
2.6%
|