| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 19 |
5%
|
| 2 | Every few weeks | 69 |
18%
|
| 3 | Every few months | 203 |
53%
|
| 4 | Not at all | 92 |
24%
|
| Sysmiss | 38 |