| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1723 |
82.3%
|
| 1 | Several days | 226 |
10.8%
|
| 2 | More than half the days | 43 |
2.1%
|
| 3 | Nearly every day | 101 |
4.8%
|
| Sysmiss | 1506 |