| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
4.7%
|
| 2 | Every few weeks | 13 |
20.3%
|
| 3 | Every few months | 17 |
26.6%
|
| 4 | Not at all | 31 |
48.4%
|
| Sysmiss | 22 |