| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 2557 |
85.8%
|
| 1 | Several days | 193 |
6.5%
|
| 2 | More than half the days | 61 |
2%
|
| 3 | Nearly every day | 169 |
5.7%
|
| Sysmiss | 4041 |