| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2335 |
86.8%
|
| 2 | SOME DIFFICULTY | 31 |
1.2%
|
| 3 | A LOT OF DIFFICULTY | 3 |
0.1%
|
| 4 | CANNOT BE UNDERSTOOD AT ALL | 8 |
0.3%
|
| 9 | NO RESPONSE | 4 |
0.1%
|
| Sysmiss | 310 |
11.5%
|