| Value | Category | Cases | |
|---|---|---|---|
| -99 | 20 |
11.9%
|
|
| 1 | Every few DAYS | 31 |
18.5%
|
| 2 | Every few WEEKS | 50 |
29.8%
|
| 3 | Every few MONTHS | 39 |
23.2%
|
| 4 | Not at all | 28 |
16.7%
|
| Sysmiss | 35 |