| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 40 |
21.5%
|
| 1 | Several days | 66 |
35.5%
|
| 2 | More than half the days | 56 |
30.1%
|
| 3 | Nearly every day | 24 |
12.9%
|