| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No method | 241 |
72.8%
|
| 1 | Folkloric method | 1 |
0.3%
|
| 2 | Traditional method | 47 |
14.2%
|
| 3 | Modern method | 42 |
12.7%
|