| Value | Category | Cases | |
|---|---|---|---|
| 1 | very well | 881 |
25.2%
|
| 2 | fairly well | 1750 |
50.1%
|
| 3 | not very well | 535 |
15.3%
|
| 4 | not at all well | 258 |
7.4%
|
| 5 | don't know | 64 |
1.8%
|
| 6 | refused | 5 |
0.1%
|