| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1689 |
92.6%
|
| 2 | SOME DIFFICULTY | 33 |
1.8%
|
| 3 | A LOT OF DIFFICULTY | 8 |
0.4%
|
| 4 | CANNOT BE UNDERSTOOD AT ALL | 3 |
0.2%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 90 |
4.9%
|