| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 17 |
16.2%
|
| 2 | Every few weeks | 24 |
22.9%
|
| 3 | Every few months | 48 |
45.7%
|
| 4 | Not at all | 16 |
15.2%
|
| Sysmiss | 59 |