| Value | Category | Cases | |
|---|---|---|---|
| 0 | No method | 568 | 
                                    
                                    41.7%
                                 | 
| 1 | Folkloric method | 20 | 
                                    
                                    1.5%
                                 | 
| 2 | Traditional method | 272 | 
                                    
                                    20%
                                 | 
| 3 | Modern method | 502 | 
                                    
                                    36.9%
                                 |