| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
6%
|
| 2 | Every few weeks | 30 |
22.4%
|
| 3 | Every few months | 41 |
30.6%
|
| 4 | Not at all | 55 |
41%
|
| Sysmiss | 28 |