| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 30 |
9%
|
| 2 | Every few weeks | 62 |
18.7%
|
| 3 | Every few months | 167 |
50.3%
|
| 4 | Not at all | 73 |
22%
|
| Sysmiss | 22 |