| Value | Category | Cases | |
|---|---|---|---|
| 0 | Knows no method | 71 |
0.3%
|
| 1 | Knows only folkloric | 11869 |
57.1%
|
| 2 | Knows only trad. mth | 2969 |
14.3%
|
| 3 | Knows modern method | 5860 |
28.2%
|