| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 4231 |
55.6%
|
| 1 | Less than once a week | 768 |
10.1%
|
| 2 | At least once a week | 955 |
12.5%
|
| 3 | Almost every day | 1660 |
21.8%
|
| 9 | Missing | 6 | |
| Sysmiss | 365 |