| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 14 |
6.5%
|
| 2 | Every few weeks | 25 |
11.7%
|
| 3 | Every few months | 68 |
31.8%
|
| 4 | Not at all | 107 |
50%
|
| Sysmiss | 36 |