| Value | Category | Cases | |
|---|---|---|---|
| -98 | Don't know | 0 | |
| 1 | Very well | 406 |
21.6%
|
| 2 | Well | 1411 |
75.1%
|
| 3 | Not well | 62 |
3.3%
|
| 4 | Not at all well | 1 |
0.1%
|
| a | Not applicable | 0 | |
| b | Don't know | 0 | |
| c | Refused to respond | 0 |