| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 965 |
21.5%
|
| 1 | Yes, more than once in the last six months | 2377 |
52.9%
|
| 2 | Yes, once in the last six months | 1151 |
25.6%
|
| Sysmiss | 3354 |