| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
3.1%
|
| 2 | Every few weeks | 51 |
14.3%
|
| 3 | Every few months | 83 |
23.2%
|
| 4 | Not at all | 115 |
32.2%
|
| Sysmiss | 97 |
27.2%
|