| Value | Category | Cases | |
|---|---|---|---|
| 0 | Knows no method | 120 |
3.5%
|
| 1 | Knows only folkloric | 1 |
0%
|
| 2 | Knows only trad. mth | 4 |
0.1%
|
| 3 | Knows modern method | 3340 |
96.4%
|