| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 |
3.6%
|
| 2 | Every few weeks | 6 |
3.6%
|
| 3 | Every few months | 46 |
27.9%
|
| 4 | Not at all | 92 |
55.8%
|
| -99 | 15 |
9.1%
|
|
| Sysmiss | 26 |