| Value | Category | Cases | |
|---|---|---|---|
| 0 | No method | 818 | 
                                    
                                    60.1%
                                 | 
| 1 | Folkloric method | 7 | 
                                    
                                    0.5%
                                 | 
| 2 | Traditional method | 90 | 
                                    
                                    6.6%
                                 | 
| 3 | Modern method | 447 | 
                                    
                                    32.8%
                                 |