| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 4848 |
89.5%
|
| 1 | yes, spontaneously | 124 |
2.3%
|
| 2 | yes, probed | 445 |
8.2%
|
| 8 | not asked | 0 |
0%
|
| Sysmiss | 4 |