| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
5.7%
|
| 2 | Every few weeks | 42 |
19.9%
|
| 3 | Every few months | 75 |
35.5%
|
| 4 | Not at all | 82 |
38.9%
|
| Sysmiss | 15 |