| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mother | 311 | 
                                    
                                    90.7%
                                 | 
| 2 | Father | 2 | 
                                    
                                    0.6%
                                 | 
| 3 | Both | 30 | 
                                    
                                    8.7%
                                 |