| Value | Category | Cases | |
|---|---|---|---|
| Family | 34 |
11.1%
|
|
| From others in the area | 157 |
51.3%
|
|
| From parents | 23 |
7.5%
|
|
| Self-taught | 85 |
27.8%
|
|
| Trained from a project | 7 |
2.3%
|