| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 22 |
11.1%
|
| 2 | Every few weeks | 53 |
26.6%
|
| 3 | Every few months | 87 |
43.7%
|
| 4 | Not at all | 37 |
18.6%
|
| Sysmiss | 11 |