| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 3993 |
68.5%
|
| 1 | folkloric method | 13 |
0.2%
|
| 2 | traditional method | 1452 |
24.9%
|
| 3 | modern method | 370 |
6.3%
|