| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 25 |
12.1%
|
| 2 | Every few weeks | 44 |
21.3%
|
| 3 | Every few months | 64 |
30.9%
|
| 4 | Not at all | 74 |
35.7%
|
| Sysmiss | 62 |