| Value | Category | Cases | |
|---|---|---|---|
| 1 | At least once a week | 84 |
8.7%
|
| 2 | Once or twice a month | 72 |
7.5%
|
| 3 | A few times a year | 136 |
14.1%
|
| 4 | Never | 674 |
69.8%
|
| Sysmiss | 34 |