| Value | Category | Cases | |
|---|---|---|---|
| 1 | very well | 137 |
3.9%
|
| 2 | fairly well | 615 |
17.6%
|
| 3 | not very well | 1338 |
38.3%
|
| 4 | not at all well | 1380 |
39.5%
|
| 5 | don't know | 18 |
0.5%
|
| 6 | refused | 5 |
0.1%
|