| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 21 |
0.1%
|
| 0 | Not at all well | 4203 |
15.2%
|
| 1 | Not very well | 7843 |
28.3%
|
| 2 | Well | 7637 |
27.6%
|
| 3 | Very well | 4513 |
16.3%
|
| 9 | Don't know | 3496 |
12.6%
|
| 998 | Refused | 0 |
0%
|