| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 17 |
8.3%
|
| 2 | Every few weeks | 28 |
13.6%
|
| 3 | Every few months | 68 |
33%
|
| 4 | Not at all | 93 |
45.1%
|
| -99 | 14 | ||
| Sysmiss | 34 |