| Value | Category | Cases | |
|---|---|---|---|
| Family | 35 |
9.4%
|
|
| From others in the area | 64 |
17.2%
|
|
| From parents | 171 |
46%
|
|
| Self-taught | 43 |
11.6%
|
|
| Trained from a project | 59 |
15.9%
|