| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, no difficulty at all | 18606 |
98.1%
|
| 2 | Yes, some difficulty | 216 |
1.1%
|
| 3 | Yes, a lot of difficulty | 48 |
0.3%
|
| 4 | Cannot hear at all | 72 |
0.4%
|
| 9 | Unspecified | 28 |
0.1%
|