| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 28 |
10%
|
| 2 | Every few weeks | 64 |
22.9%
|
| 3 | Every few months | 135 |
48.4%
|
| 4 | Not at all | 52 |
18.6%
|
| Sysmiss | 96 |