| Value | Category | Cases | |
|---|---|---|---|
| Family | 30 |
16.1%
|
|
| From others in the area | 62 |
33.3%
|
|
| From parents | 34 |
18.3%
|
|
| Self-taught | 56 |
30.1%
|
|
| Trained from a project | 4 |
2.2%
|