| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
9.5%
|
| 2 | Every few weeks | 30 |
23.8%
|
| 3 | Every few months | 48 |
38.1%
|
| 4 | Not at all | 36 |
28.6%
|
| Sysmiss | 18 |