| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 2792 |
84.5%
|
| 1 | Several days | 369 |
11.2%
|
| 2 | More than half the days | 74 |
2.2%
|
| 3 | Nearly every day | 70 |
2.1%
|
| Sysmiss | 3725 |