| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1455 |
39.4%
|
| 2 | Several days | 1322 |
35.8%
|
| 3 | More than half the days | 611 |
16.5%
|
| 4 | Nearly every day | 306 |
8.3%
|