| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
9.5%
|
| 2 | Every few weeks | 15 |
12.9%
|
| 3 | Every few months | 48 |
41.4%
|
| 4 | Not at all | 42 |
36.2%
|
| Sysmiss | 18 |