| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
7.4%
|
| 2 | Every few weeks | 36 |
22.2%
|
| 3 | Every few months | 81 |
50%
|
| 4 | Not at all | 33 |
20.4%
|
| -99 | 10 | ||
| Sysmiss | 32 |