| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
5.1%
|
| 2 | Every few weeks | 30 |
14%
|
| 3 | Every few months | 50 |
23.4%
|
| 4 | Not at all | 123 |
57.5%
|
| Sysmiss | 12 |