| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no method | 3349 |
71.3%
|
| 1 | folkloric method | 4 |
0.1%
|
| 2 | traditional method | 33 |
0.7%
|
| 3 | modern method | 1311 |
27.9%
|
| 8 | don't know | 0 |
0%
|