| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 23 |
4.8%
|
| 2 | Every few weeks | 94 |
19.8%
|
| 3 | Every few months | 249 |
52.4%
|
| 4 | Not at all | 109 |
22.9%
|
| Sysmiss | 92 |