| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 19 |
9.5%
|
| 2 | Every few weeks | 52 |
26.1%
|
| 3 | Every few months | 61 |
30.7%
|
| 4 | Not at all | 67 |
33.7%
|
| Sysmiss | 17 |