| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 4 |
2.6%
|
| 2 | Every few weeks | 15 |
9.9%
|
| 3 | Every few months | 48 |
31.6%
|
| 4 | Not at all | 85 |
55.9%
|
| -99 | 12 | ||
| Sysmiss | 19 |