| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 7437 |
60.3%
|
| 1 | folkloric method | 7 |
0.1%
|
| 2 | traditional method | 310 |
2.5%
|
| 3 | modern method | 4589 |
37.2%
|