| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
5.8%
|
| 2 | Every few weeks | 18 |
15%
|
| 3 | Every few months | 42 |
35%
|
| 4 | Not at all | 53 |
44.2%
|
| Sysmiss | 27 |