| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
1.4%
|
| 2 | Every few weeks | 12 |
5.7%
|
| 3 | Every few months | 82 |
39.2%
|
| 4 | Not at all | 112 |
53.6%
|
| Sysmiss | 44 |