| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 551 |
75.4%
|
| 2 | Several days | 137 |
18.7%
|
| 3 | More than half the days | 23 |
3.1%
|
| 4 | Nearly every day | 20 |
2.7%
|
| Sysmiss | 5183 |