| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 317 |
87.6%
|
| 2 | Several days | 25 |
6.9%
|
| 3 | More than half the days | 19 |
5.2%
|
| 4 | Nearly every day | 1 |
0.3%
|
| Sysmiss | 195 |