| Value | Category | Cases | |
|---|---|---|---|
| 1 | Almost every day | 4527 |
25.2%
|
| 2 | At least once a week | 2099 |
11.7%
|
| 3 | Less than once a week | 2231 |
12.4%
|
| 4 | Not at all | 9088 |
50.6%
|
| 9 | 4 | ||
| Sysmiss | 1891 |