| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1.Visible in classroom | 912 |
73.6%
|
| 2 | 2.In classroom, not visible | 43 |
3.5%
|
| 3 | 3.Not in classroom but available | 149 |
12%
|
| 4 | 4.Not available | 135 |
10.9%
|
| 5 | 5.Missing | 0 |
0%
|
| 6 | 6.Others | 0 |
0%
|