| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 22 |
5.2%
|
| 2 | Every few weeks | 59 |
14%
|
| 3 | Every few months | 159 |
37.8%
|
| 4 | Not at all | 181 |
43%
|
| Sysmiss | 54 |