| Value | Category | Cases | |
|---|---|---|---|
| 1 | very well | 158 |
4.7%
|
| 2 | fairly well | 538 |
15.9%
|
| 3 | not very well | 1073 |
31.7%
|
| 4 | not at all well | 1586 |
46.9%
|
| 5 | don't know | 14 |
0.4%
|
| 6 | refused | 15 |
0.4%
|