| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 699 |
85.6%
|
| 1 | Several days | 92 |
11.3%
|
| 2 | 23 |
2.8%
|
|
| 3 | More than half of the days | 3 |
0.4%
|
| 4 | Nearly every day | 0 |
0%
|
| Sysmiss | 4 |