| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
1%
|
| 2 | Every few weeks | 14 |
4.9%
|
| 3 | Every few months | 94 |
32.6%
|
| 4 | Not at all | 177 |
61.5%
|
| Sysmiss | 13 |