| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 14 |
2.9%
|
| 2 | Every few weeks | 22 |
4.6%
|
| 3 | Every few months | 99 |
20.5%
|
| 4 | Not at all | 313 |
64.8%
|
| Sysmiss | 35 |
7.2%
|