| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no | 189 |
16.5%
|
| 1 | yes, spontaneously | 306 |
26.7%
|
| 2 | yes, probed | 651 |
56.8%
|
| 8 | not asked | 0 |
0%
|