| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 58 |
12.2%
|
| 2 | Every few weeks | 110 |
23.2%
|
| 3 | Every few months | 234 |
49.4%
|
| 4 | Not at all | 72 |
15.2%
|
| Sysmiss | 4 |