| Value | Category | Cases | |
|---|---|---|---|
| 1 | very well | 447 |
12.8%
|
| 2 | fairly well | 1002 |
28.7%
|
| 3 | not very well | 1074 |
30.7%
|
| 4 | not at all well | 783 |
22.4%
|
| 5 | don't know | 182 |
5.2%
|
| 6 | refused | 5 |
0.1%
|