| Value | Category | Cases | |
|---|---|---|---|
| 1 | well | 36286 |
71.5%
|
| 2 | with difficulty | 2501 |
4.9%
|
| 3 | not at all | 1102 |
2.2%
|
| 4 | too young | 10876 |
21.4%
|
| Sysmiss | 527 |