| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 |
8.3%
|
| 2 | Every few weeks | 17 |
23.6%
|
| 3 | Every few months | 35 |
48.6%
|
| 4 | Not at all | 14 |
19.4%
|
| Sysmiss | 24 |