| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 2 |
2.1%
|
| 2 | Every few weeks | 14 |
14.6%
|
| 3 | Every few months | 50 |
52.1%
|
| 4 | Not at all | 30 |
31.3%
|
| Sysmiss | 13 |