| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1075 |
87.5%
|
| 1 | Several days | 131 |
10.7%
|
| 2 | More than half the days | 22 |
1.8%
|
| 3 | Nearly every day | 1 |
0.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 27 |