| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
5%
|
| 2 | Every few weeks | 52 |
21.7%
|
| 3 | Every few months | 131 |
54.6%
|
| 4 | Not at all | 45 |
18.8%
|
| Sysmiss | 54 |