| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all well | 84 |
5.2%
|
| 2 | Not very well | 199 |
12.2%
|
| 3 | Pretty well | 264 |
16.2%
|
| 4 | Very well | 1078 |
66.3%
|
| r | 1 |
0.1%
|