| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 20 |
6%
|
| 2 | Every few weeks | 55 |
16.6%
|
| 3 | Every few months | 127 |
38.3%
|
| 4 | Not at all | 130 |
39.2%
|
| Sysmiss | 22 |