| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a week or more | 1 |
1.4%
|
| 2 | Once a month or more | 22 |
29.7%
|
| 3 | Every few months | 31 |
41.9%
|
| 4 | Other (specify) | 20 |
27%
|
| Sysmiss | 353 |