| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no | 527 |
46%
|
| 1 | yes, spontaneously | 133 |
11.6%
|
| 2 | yes, probed | 486 |
42.4%
|
| 8 | not asked | 0 |
0%
|