| Value | Category | Cases | |
|---|---|---|---|
| 1 | well | 38443 |
75.7%
|
| 2 | with difficulty | 1518 |
3%
|
| 3 | not at all | 683 |
1.3%
|
| 4 | too young | 10132 |
20%
|
| Sysmiss | 516 |