| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1566 |
66.2%
|
| 2 | Several days | 533 |
22.5%
|
| 3 | More than half the days | 110 |
4.6%
|
| 4 | Nearly everyday | 158 |
6.7%
|