| Value | Category | Cases | |
|---|---|---|---|
| 1 | very well | 244 |
7.2%
|
| 2 | fairly well | 1040 |
30.7%
|
| 3 | not very well | 1177 |
34.8%
|
| 4 | not at all well | 739 |
21.8%
|
| 5 | don't know | 169 |
5%
|
| 6 | refused | 15 |
0.4%
|