| Value | Category | Cases | |
|---|---|---|---|
| 1 | No mathematics homework | 26 |
2.8%
|
| 2 | Less than once a week | 57 |
6.1%
|
| 3 | 1 or 2 times a week | 258 |
27.7%
|
| 4 | 3 or 4 times a week | 301 |
32.4%
|
| 5 | Every day | 288 |
31%
|
| Sysmiss | 70 |