| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 4603 |
60.8%
|
| 1 | folkloric method | 6 |
0.1%
|
| 2 | traditional method | 189 |
2.5%
|
| 3 | modern method | 2771 |
36.6%
|