| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 9 |
6.6%
|
| 2 | Every few weeks | 25 |
18.4%
|
| 3 | Every few months | 45 |
33.1%
|
| 4 | Not at all | 57 |
41.9%
|
| Sysmiss | 17 |