| Value | Category | Cases | |
|---|---|---|---|
| Family | 33 | 
                                                                 
                                    
                                    12%
                                 
                                                             | 
                                                        
                    |
| From others in the area | 107 | 
                                                                 
                                    
                                    39.1%
                                 
                                                             | 
                                                        
                    |
| From parents | 46 | 
                                                                 
                                    
                                    16.8%
                                 
                                                             | 
                                                        
                    |
| Self-taught | 87 | 
                                                                 
                                    
                                    31.8%
                                 
                                                             | 
                                                        
                    |
| Trained from a project | 1 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             |