| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1957 |
90.3%
|
| 2 | SOME DIFFICULTY | 200 |
9.2%
|
| 3 | A LOT OF DIFFICULTY | 6 |
0.3%
|
| 4 | CANNOT BE UNDERSTOOD AT ALL | 4 |
0.2%
|
| 9 | NO RESPONSE | 0 |
0%
|
| Sysmiss | 1385 |