| Value | Category | Cases | |
|---|---|---|---|
| 1 | At school (no studying at home) | 9 |
2.8%
|
| 2 | Battery | 1 |
0.3%
|
| 3 | Day light | 13 |
4.1%
|
| 4 | Don't revise in the evening | 1 |
0.3%
|
| 5 | Go to neighbors | 6 |
1.9%
|
| 6 | Lamp with batteries | 2 |
0.6%
|
| 7 | Lamps | 1 |
0.3%
|
| 8 | Lighter | 1 |
0.3%
|
| 9 | Live at school | 2 |
0.6%
|
| 10 | No child revising lessons | 10 |
3.1%
|
| 11 | No lessons revising | 7 |
2.2%
|
| 12 | Nothing | 5 |
1.6%
|
| 13 | Phone torch | 46 |
14.4%
|
| 14 | Rechargeable lamp | 1 |
0.3%
|
| 15 | Torch | 210 |
65.8%
|
| 16 | Torch with batteries | 4 |
1.3%
|
| Sysmiss | 5387 |