| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES SPONTANEOUS | 17 |
3.3%
|
| 2 | YES RECOG | 8 |
1.6%
|
| 3 | NO | 482 |
94.9%
|
| 9 | REFUSED | 1 |
0.2%
|
| Sysmiss | 161 |