| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4 |
10.8%
|
| 1 | Yes, more than once in the last six months | 31 |
83.8%
|
| 2 | Yes, once in the last six months | 2 |
5.4%
|
| Sysmiss | 9052 |