| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 920 |
20.1%
|
| 1 | Yes, more than once in the last six months | 2169 |
47.3%
|
| 2 | Yes, once in the last six months | 1497 |
32.6%
|
| Sysmiss | 3261 |