| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1748 |
83.5%
|
| 1 | Several days | 205 |
9.8%
|
| 2 | More than half the days | 31 |
1.5%
|
| 3 | Nearly every day | 109 |
5.2%
|
| Sysmiss | 1506 |