| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 37 |
8.1%
|
| 2 | Every few weeks | 95 |
20.7%
|
| 3 | Every few months | 222 |
48.5%
|
| 4 | Not at all | 104 |
22.7%
|
| Sysmiss | 109 |