| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 36 |
11.1%
|
| 2 | Every few weeks | 88 |
27.1%
|
| 3 | Every few months | 135 |
41.5%
|
| 4 | Not at all | 66 |
20.3%
|
| Sysmiss | 66 |