| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 339 |
35.1%
|
| 1 | Yes, more than once in the last six months | 448 |
46.4%
|
| 2 | Yes, once in the last six months | 179 |
18.5%
|
| Sysmiss | 6881 |