| Value | Category | Cases | |
|---|---|---|---|
| 1 | Well | 32 |
4.7%
|
| 2 | Fairly well | 132 |
19.3%
|
| 3 | Fairly | 188 |
27.4%
|
| 4 | With difficulty | 333 |
48.6%
|
| Sysmiss | 2 |