| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 9 |
6.8%
|
| 2 | Every few weeks | 32 |
24.2%
|
| 3 | Every few months | 62 |
47%
|
| 4 | Not at all | 29 |
22%
|
| -99 | 3 | ||
| Sysmiss | 25 |