| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 29 |
17.3%
|
| 1 | Yes, more than once in the last six months | 100 |
59.5%
|
| 2 | Yes, once in the last six months | 39 |
23.2%
|
| Sysmiss | 8921 |