| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 28 |
8%
|
| 2 | Every few weeks | 94 |
26.9%
|
| 3 | Every few months | 167 |
47.9%
|
| 4 | Not at all | 60 |
17.2%
|
| Sysmiss | 17 |