| Value | Category | Cases | |
|---|---|---|---|
| 0 | not given | 25 | 
                                    
                                    5.2%
                                 | 
| 1 | 42 | 
                                    
                                    8.8%
                                 | |
| 2 | 47 | 
                                    
                                    9.8%
                                 | |
| 3 | 40 | 
                                    
                                    8.4%
                                 | |
| 4 | 32 | 
                                    
                                    6.7%
                                 | |
| 5 | 28 | 
                                    
                                    5.8%
                                 | |
| 6 | 40 | 
                                    
                                    8.4%
                                 | |
| 7 | 36 | 
                                    
                                    7.5%
                                 | |
| 8 | 24 | 
                                    
                                    5%
                                 | |
| 9 | 19 | 
                                    
                                    4%
                                 | |
| 10 | 29 | 
                                    
                                    6.1%
                                 | |
| 11 | 31 | 
                                    
                                    6.5%
                                 | |
| 12 | 31 | 
                                    
                                    6.5%
                                 | |
| 44 | marked on card | 49 | 
                                    
                                    10.2%
                                 | 
| 66 | mother reported | 5 | 
                                    
                                    1%
                                 | 
| 97 | inconsistent | 0 | 
                                    
                                    0%
                                 | 
| 98 | dk | 1 | 
                                    
                                    0.2%
                                 | 
| 99 | missing | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 14872 |