| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 4 |
6%
|
| 2 | Every few weeks | 19 |
28.4%
|
| 3 | Every few months | 28 |
41.8%
|
| 4 | Not at all | 16 |
23.9%
|
| Sysmiss | 16 |