| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 135 |
52.1%
|
| 1 | Several days | 102 |
39.4%
|
| 2 | Over half the days | 16 |
6.2%
|
| 3 | Nearly every day | 6 |
2.3%
|
| Sysmiss | 61 |