| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 9759 |
83.9%
|
| 1 | folkloric method | 6 |
0.1%
|
| 2 | traditional method | 208 |
1.8%
|
| 3 | modern method | 1655 |
14.2%
|