| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all well | 26 |
1.6%
|
| 2 | Not very well | 138 |
8.5%
|
| 3 | Pretty well | 492 |
30.3%
|
| 4 | Very well | 968 |
59.5%
|
| r | 2 |
0.1%
|