| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
6.1%
|
| 2 | Every few weeks | 31 |
14.6%
|
| 3 | Every few months | 70 |
33%
|
| 4 | Not at all | 98 |
46.2%
|
| Sysmiss | 57 |