| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 107 |
15.9%
|
| 1 | Yes, more than once in the last six months | 425 |
63.3%
|
| 2 | Yes, once in the last six months | 139 |
20.7%
|
| Sysmiss | 8418 |