| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 3830 |
91.3%
|
| 2 | SOME DIFFICULTY | 342 |
8.2%
|
| 3 | A LOT OF DIFFICULTY | 14 |
0.3%
|
| 4 | CANNOT BE UNDERSTOOD AT ALL | 10 |
0.2%
|
| 9 | NO RESPONSE | 0 |
0%
|
| Sysmiss | 2553 |