| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 433 |
53%
|
| 1 | Several days | 333 |
40.8%
|
| 2 | 33 |
4%
|
|
| 3 | More than half of the days | 16 |
2%
|
| 4 | Nearly every day | 1 |
0.1%
|
| 10 | 1 |
0.1%
|
|
| Sysmiss | 4 |