| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 64 |
11.7%
|
| 2 | Every few weeks | 113 |
20.6%
|
| 3 | Every few months | 307 |
55.9%
|
| 4 | Not at all | 65 |
11.8%
|
| Sysmiss | 14 |