| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1562 |
74%
|
| 1 | Several days | 317 |
15%
|
| 2 | More than half the days | 53 |
2.5%
|
| 3 | Nearly every day | 179 |
8.5%
|
| Sysmiss | 1 |