| Value | Category | Cases | |
|---|---|---|---|
| 1 | All lessons | 59903 |
15%
|
| 2 | Most Lessons | 112018 |
28.1%
|
| 3 | Some lessons | 133597 |
33.5%
|
| 4 | Hardly ever | 59058 |
14.8%
|
| 7 | N/A | 3547 |
0.9%
|
| 8 | Invalid | 715 |
0.2%
|
| 9 | Missing | 29912 |
7.5%
|