| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No method | 6185 |
78.2%
|
| 1 | Folkloric method | 82 |
1%
|
| 2 | Traditional method | 572 |
7.2%
|
| 3 | Modern method | 1074 |
13.6%
|