| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 8 |
0.5%
|
| 1 | 1 day per week | 15 |
0.9%
|
| 2 | 2 days per week | 32 |
1.8%
|
| 3 | 3 days per week | 42 |
2.4%
|
| 4 | 4 days per week | 11 |
0.6%
|
| 5 | 5 days per week | 858 |
49%
|
| 9 | No teacher t/book | 786 |
44.9%
|