| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 586 |
71.9%
|
| 1 | Several days | 184 |
22.6%
|
| 2 | 32 |
3.9%
|
|
| 3 | More than half of the days | 13 |
1.6%
|
| 4 | Nearly every day | 0 |
0%
|
| Sysmiss | 6 |