| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 20 |
16.5%
|
| 2 | Every few weeks | 38 |
31.4%
|
| 3 | Every few months | 47 |
38.8%
|
| 4 | Not at all | 16 |
13.2%
|
| Sysmiss | 27 |