| Value | Category | Cases | |
|---|---|---|---|
| 0 | Knows no method | 88 |
0.1%
|
| 1 | Knows only folkloric | 51190 |
66.7%
|
| 2 | Knows only trad. mth | 10983 |
14.3%
|
| 3 | Knows modern method | 14525 |
18.9%
|