| Value | Category | Cases | |
|---|---|---|---|
| 1 | very well | 195 |
5.6%
|
| 2 | fairly well | 538 |
15.4%
|
| 3 | not very well | 981 |
28.1%
|
| 4 | not at all well | 1758 |
50.3%
|
| 5 | don't know | 16 |
0.5%
|
| 6 | refused | 5 |
0.1%
|