| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | never used | 1614 |
69%
|
| 1 | used only folkloric | 2 |
0.1%
|
| 2 | used only trad. meth | 222 |
9.5%
|
| 3 | used modern method | 502 |
21.5%
|