| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 655 |
27.2%
|
| 2 | Several days | 1022 |
42.4%
|
| 3 | More than half the days | 392 |
16.3%
|
| 4 | Nearly everyday | 339 |
14.1%
|