| Value | Category | Cases | |
|---|---|---|---|
| 1 | Almost every day | 2 |
6.7%
|
| 2 | At least once a week | 24 |
80%
|
| 3 | At least once a month | 3 |
10%
|
| 4 | Less than once a month | 1 |
3.3%
|
| 11 | .A | 2 | |
| Sysmiss | 257 |