| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 20 |
7.4%
|
| 2 | Every few weeks | 38 |
14%
|
| 3 | Every few months | 71 |
26.1%
|
| 4 | Not at all | 143 |
52.6%
|
| Sysmiss | 31 |