| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 8758 |
64.1%
|
| 1 | Less than once a week | 3435 |
25.1%
|
| 2 | At least once a week | 1471 |
10.8%
|
| 3 | Almost every day | 0 |
0%
|
| 9 | 7 | ||
| Sysmiss | 119 |