| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all well | 19 |
1.2%
|
| 2 | Not very well | 124 |
7.6%
|
| 3 | Pretty well | 396 |
24.4%
|
| 4 | Very well | 1086 |
66.8%
|
| r | 1 |
0.1%
|