| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all. | 3141 |
94.7%
|
| 1 | Several days | 130 |
3.9%
|
| 2 | More than half the days | 11 |
0.3%
|
| 3 | Nearly every day | 34 |
1%
|
| Sysmiss | 2672 |