| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, no difficulty | 134223 |
98.3%
|
| 2 | Yes, some difficulty | 1952 |
1.4%
|
| 3 | Yes, a lot of difficulty | 282 |
0.2%
|
| 4 | Cannot hear at all (deaf) | 92 |
0.1%
|
| 9 | MISSING | 0 |
0%
|
| Sysmiss | 230 |