| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 5 |
5.3%
|
| 2 | Every few weeks | 31 |
32.6%
|
| 3 | Every few months | 37 |
38.9%
|
| 4 | Not at all | 22 |
23.2%
|
| Sysmiss | 14 |