| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 2635 |
88.4%
|
| 1 | Several days | 222 |
7.4%
|
| 2 | More than half the days | 46 |
1.5%
|
| 3 | Nearly every day | 78 |
2.6%
|
| Sysmiss | 4040 |