| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 4 |
2%
|
| 2 | Every few weeks | 15 |
7.5%
|
| 3 | Every few months | 79 |
39.3%
|
| 4 | Not at all | 103 |
51.2%
|
| Sysmiss | 15 |