| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 22 |
10.9%
|
| 2 | Every few weeks | 41 |
20.3%
|
| 3 | Every few months | 82 |
40.6%
|
| 4 | Not at all | 36 |
17.8%
|
| Sysmiss | 21 |
10.4%
|