| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 4164 |
76.9%
|
| 1 | yes, spontaneously | 94 |
1.7%
|
| 2 | yes, probed | 1160 |
21.4%
|
| 8 | not asked | 0 |
0%
|
| Sysmiss | 3 |