| Value | Category | Cases | |
|---|---|---|---|
| -99 | 16 |
5.8%
|
|
| 1 | Every few DAYS | 28 |
10.1%
|
| 2 | Every few WEEKS 3, Every few MONTHS 4, Not at all | 57 |
20.5%
|
| 3 | 91 |
32.7%
|
|
| 4 | 86 |
30.9%
|
|
| Sysmiss | 32 |