| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1919 |
91.8%
|
| 1 | Several days | 78 |
3.7%
|
| 2 | More than half the days | 19 |
0.9%
|
| 3 | Nearly every day | 75 |
3.6%
|
| Sysmiss | 1508 |