| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all well | 30 |
1.8%
|
| 2 | Not very well | 135 |
8.3%
|
| 3 | Pretty well | 431 |
26.5%
|
| 4 | Very well | 1029 |
63.3%
|
| r | 1 |
0.1%
|