| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
9.5%
|
| 2 | Every few weeks | 13 |
10.3%
|
| 3 | Every few months | 42 |
33.3%
|
| 4 | Not at all | 59 |
46.8%
|
| Sysmiss | 18 |