| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1989 |
26.2%
|
| 1 | Less than once a week | 1218 |
16%
|
| 2 | At least once a week | 1665 |
21.9%
|
| 3 | Almost every day | 2733 |
35.9%
|
| 9 | Missing | 15 | |
| Sysmiss | 365 |