| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 2656 |
49.1%
|
| 1 | yes, spontaneously | 359 |
6.6%
|
| 2 | yes, probed | 2397 |
44.3%
|
| 8 | not asked | 0 |
0%
|
| Sysmiss | 9 |