| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 4872 |
76.7%
|
| 1 | folkloric method | 17 |
0.3%
|
| 2 | traditional method | 1031 |
16.2%
|
| 3 | modern method | 434 |
6.8%
|