| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 16 |
16.8%
|
| 2 | Every few weeks | 25 |
26.3%
|
| 3 | Every few months | 34 |
35.8%
|
| 4 | Not at all | 20 |
21.1%
|
| Sysmiss | 19 |