| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No method | 2628 |
86.2%
|
| 1 | Folkloric method | 15 |
0.5%
|
| 2 | Traditional method | 170 |
5.6%
|
| 3 | Modern method | 237 |
7.8%
|