| Value | Category | Cases | |
|---|---|---|---|
| 1 | At least once a week | 74 |
7.9%
|
| 2 | Once or twice a month | 89 |
9.5%
|
| 3 | A few times a year | 164 |
17.5%
|
| 4 | Never | 612 |
65.2%
|
| Sysmiss | 61 |