| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 549 |
75%
|
| 2 | Several days | 156 |
21.3%
|
| 3 | More than half the days | 15 |
2%
|
| 4 | Nearly every day | 12 |
1.6%
|
| Sysmiss | 5182 |