| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 24 |
14.3%
|
| 1 | Yes, more than once in the last six months | 111 |
66.1%
|
| 2 | Yes, once in the last six months | 33 |
19.6%
|
| Sysmiss | 8921 |