| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1394 |
94.3%
|
| 2 | SOME DIFFICULTY | 27 |
1.8%
|
| 3 | A LOT OF DIFFICULTY | 5 |
0.3%
|
| 4 | CANNOT BE UNDERSTOOD AT ALL | 4 |
0.3%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 48 |
3.2%
|