| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 18 |
8.9%
|
| 2 | Every few weeks | 46 |
22.8%
|
| 3 | Every few months | 64 |
31.7%
|
| 4 | Not at all | 55 |
27.2%
|
| Sysmiss | 19 |
9.4%
|