| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 45 |
8.4%
|
| 2 | Every few weeks | 132 |
24.5%
|
| 3 | Every few months | 194 |
36.1%
|
| 4 | Not at all | 167 |
31%
|
| Sysmiss | 25 |