| Value | Category | Cases | |
|---|---|---|---|
| -99 | 25 |
15%
|
|
| 1 | Every few DAYS | 26 |
15.6%
|
| 2 | Every few WEEKS | 54 |
32.3%
|
| 3 | Every few MONTHS | 39 |
23.4%
|
| 4 | Not at all | 23 |
13.8%
|
| Sysmiss | 36 |