| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 5302 |
68.7%
|
| 1 | folkloric method | 3 |
0%
|
| 2 | traditional method | 44 |
0.6%
|
| 3 | modern method | 2371 |
30.7%
|
| 8 | don't know | 0 |
0%
|