| Value | Category | Cases | |
|---|---|---|---|
| 0 | Single,before marr. | 0 | 
                                    
                                    0%
                                 | 
| 1 | 0-4 | 4 | 
                                    
                                    4.6%
                                 | 
| 2 | 5-9 | 20 | 
                                    
                                    23%
                                 | 
| 3 | 10-14 | 32 | 
                                    
                                    36.8%
                                 | 
| 4 | 15-19 | 17 | 
                                    
                                    19.5%
                                 | 
| 5 | 20-24 | 13 | 
                                    
                                    14.9%
                                 | 
| 6 | 25+ | 1 | 
                                    
                                    1.1%
                                 |