| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 9 |
7%
|
| 2 | Every few weeks | 16 |
12.5%
|
| 3 | Every few months | 74 |
57.8%
|
| 4 | Not at all | 29 |
22.7%
|
| Sysmiss | 16 |