| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 3812 |
96.1%
|
| 2 | Some difficulty | 132 |
3.3%
|
| 3 | A lot of difficulty | 19 |
0.5%
|
| 4 | Cannot be understood at all | 4 |
0.1%
|
| 9 | No response | 0 |
0%
|
| Sysmiss | 362 |