| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 314 |
86.7%
|
| 2 | Several days | 27 |
7.5%
|
| 3 | More than half the days | 16 |
4.4%
|
| 4 | Nearly every day | 5 |
1.4%
|
| Sysmiss | 195 |