| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1003 |
45.2%
|
| 2 | Several days | 682 |
30.7%
|
| 3 | More than half the days | 285 |
12.8%
|
| 4 | Nearly everyday | 249 |
11.2%
|