| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Knows no method | 4 |
1.2%
|
| 1 | Knows only folkloric | 0 |
0%
|
| 2 | Knows only trad. mth | 1 |
0.3%
|
| 3 | Knows modern method | 326 |
98.5%
|