| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all well | 13 |
0.8%
|
| 2 | Not very well | 127 |
7.8%
|
| 3 | Pretty well | 506 |
31.1%
|
| 4 | Very well | 978 |
60.1%
|
| r | 2 |
0.1%
|