| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 29 |
8.8%
|
| 2 | Every few weeks | 71 |
21.6%
|
| 3 | Every few months | 114 |
34.8%
|
| 4 | Not at all | 114 |
34.8%
|
| Sysmiss | 63 |