| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No, no difficulty | 80114 |
99%
|
| 2 | 2. Yes, some | 614 |
0.8%
|
| 3 | 3. Yes, a lot | 98 |
0.1%
|
| 4 | 4. Cannot hear | 121 |
0.1%
|
| Sysmiss | 26721 |