| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 321 |
84.5%
|
| 1 | Several days | 48 |
12.6%
|
| 2 | More than half the days | 6 |
1.6%
|
| 3 | Nearly every day | 5 |
1.3%
|