| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 5 |
5.2%
|
| 2 | Every few weeks | 17 |
17.7%
|
| 3 | Every few months | 54 |
56.3%
|
| 4 | Not at all | 20 |
20.8%
|
| Sysmiss | 17 |