| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, several times in the past six months | 199 |
68.9%
|
| 2 | Yes, one or twice in the last six months | 53 |
18.3%
|
| 3 | No | 37 |
12.8%
|
| Sysmiss | 8800 |