| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 19 |
6%
|
| 2 | Every few weeks | 67 |
21.1%
|
| 3 | Every few months | 196 |
61.6%
|
| 4 | Not at all | 36 |
11.3%
|
| Sysmiss | 78 |