| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 9 |
2.5%
|
| 2 | Every few weeks | 36 |
9.9%
|
| 3 | Every few months | 183 |
50.3%
|
| 4 | Not at all | 136 |
37.4%
|
| Sysmiss | 57 |