| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 24 |
9.8%
|
| 2 | Every few weeks | 69 |
28.3%
|
| 3 | Every few months | 77 |
31.6%
|
| 4 | Not at all | 74 |
30.3%
|
| Sysmiss | 19 |