| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not test the pupils | 0 |
0%
|
| 2 | Once per year | 1 |
0.2%
|
| 3 | Once a term | 3 |
0.7%
|
| 4 | Two or more times per term | 42 |
9.8%
|
| 5 | Once a month | 57 |
13.3%
|
| 6 | Two or more week | 327 |
76%
|