| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 18 |
5%
|
| 2 | Every few weeks | 38 |
10.6%
|
| 3 | Every few months | 113 |
31.5%
|
| 4 | Not at all | 108 |
30.1%
|
| Sysmiss | 82 |
22.8%
|