| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 7 |
17.1%
|
| 1 | Yes, more than once in the last six months | 26 |
63.4%
|
| 2 | Yes, once in the last six months | 8 |
19.5%
|
| Sysmiss | 7806 |