| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | knows no method | 180 |
15.7%
|
| 1 | knows only folkloric | 3 |
0.3%
|
| 2 | knows only trad. mth | 184 |
16.1%
|
| 3 | knows modern method | 779 |
68%
|