| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 3087 |
61.7%
|
| 1 | Several Days | 1362 |
27.2%
|
| 2 | More than half the days | 338 |
6.8%
|
| 3 | Nearly every day | 170 |
3.4%
|
| 99 | Refused | 50 |
1%
|