| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No | 773 |
98.1%
|
| 1 | Yes, spontaneously | 1 |
0.1%
|
| 2 | Yes, probed | 14 |
1.8%
|
| 8 | Not asked | 0 |
0%
|
| 9 | 7 |