| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 2834 |
85.8%
|
| 1 | Several days | 220 |
6.7%
|
| 2 | More than half the days | 69 |
2.1%
|
| 3 | Nearly every day | 181 |
5.5%
|
| Sysmiss | 3726 |