| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 244 |
25.3%
|
| 1 | Yes, more than once in the last six months | 489 |
50.6%
|
| 2 | Yes, once in the last six months | 233 |
24.1%
|
| Sysmiss | 6881 |