| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, several times in the past six months | 77 |
60.6%
|
| 2 | Yes, one or twice in the last six months | 29 |
22.8%
|
| 3 | No | 21 |
16.5%
|
| Sysmiss | 8962 |