| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 |
2.7%
|
| 2 | Every few weeks | 27 |
12%
|
| 3 | Every few months | 75 |
33.3%
|
| 4 | Not at all | 117 |
52%
|
| Sysmiss | 107 |