| Value | Category | Cases | |
|---|---|---|---|
| 1 | Throughout the entire year | 171 |
75%
|
| 2 | Last six months | 28 |
12.3%
|
| 3 | Last three months | 18 |
7.9%
|
| 4 | Last month | 1 |
0.4%
|
| 5 | Intermittently | 10 |
4.4%
|
| 6 | During summer break | 0 |
0%
|
| Sysmiss | 16202 |