| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1511 |
19.2%
|
| 1 | Yes, spontaneously | 1614 |
20.5%
|
| 2 | Yes, probed | 4752 |
60.3%
|
| 8 | Not asked | 0 |
0%
|