| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, no difficulty | 26326 |
98.8%
|
| 2 | Yes, some | 262 |
1%
|
| 3 | Yes, a lot | 20 |
0.1%
|
| 4 | Cannot hear | 38 |
0.1%
|
| Sysmiss | 606 |