| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
4.7%
|
| 2 | Every few weeks | 25 |
14.5%
|
| 3 | Every few months | 44 |
25.6%
|
| 4 | Not at all | 80 |
46.5%
|
| Sysmiss | 15 |
8.7%
|