| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 33 |
10.7%
|
| 2 | Every few weeks | 48 |
15.6%
|
| 3 | Every few months | 94 |
30.6%
|
| 4 | Not at all | 132 |
43%
|
| Sysmiss | 61 |