| Value | Category | Cases | |
|---|---|---|---|
| Family | 27 |
8.8%
|
|
| From others in the area | 192 |
62.7%
|
|
| From parents | 21 |
6.9%
|
|
| Self-taught | 50 |
16.3%
|
|
| Trained from a project | 16 |
5.2%
|