| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no | 725 |
39.3%
|
| 1 | yes, spontaneously | 429 |
23.3%
|
| 2 | yes, probed | 691 |
37.5%
|
| 8 | not asked | 0 |
0%
|