| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Knows no method | 163 |
22%
|
| 1 | Knows only folkloric | 1 |
0.1%
|
| 2 | Knows only trad. mth | 12 |
1.6%
|
| 3 | Knows modern method | 566 |
76.3%
|