| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 587 |
60.8%
|
| 1 | Yes, more than once in the last six months | 254 |
26.3%
|
| 2 | Yes, once in the last six months | 125 |
12.9%
|
| Sysmiss | 6881 |