| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
9.7%
|
| 2 | Every few weeks | 40 |
32.3%
|
| 3 | Every few months | 55 |
44.4%
|
| 4 | Not at all | 17 |
13.7%
|
| Sysmiss | 14 |