| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 15 |
7.4%
|
| 2 | Every few weeks | 38 |
18.8%
|
| 3 | Every few months | 83 |
41.1%
|
| 4 | Not at all | 66 |
32.7%
|
| Sysmiss | 14 |