| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 16 |
7.7%
|
| 2 | Every few weeks | 56 |
27.1%
|
| 3 | Every few months | 78 |
37.7%
|
| 4 | Not at all | 57 |
27.5%
|
| Sysmiss | 9 |