| Value | Category | Cases | |
|---|---|---|---|
| 0 | not given | 954 | 
                                    
                                    46.6%
                                 | 
| 1 | 107 | 
                                    
                                    5.2%
                                 | |
| 2 | 113 | 
                                    
                                    5.5%
                                 | |
| 3 | 86 | 
                                    
                                    4.2%
                                 | |
| 4 | 58 | 
                                    
                                    2.8%
                                 | |
| 5 | 91 | 
                                    
                                    4.4%
                                 | |
| 6 | 55 | 
                                    
                                    2.7%
                                 | |
| 7 | 60 | 
                                    
                                    2.9%
                                 | |
| 8 | 75 | 
                                    
                                    3.7%
                                 | |
| 9 | 51 | 
                                    
                                    2.5%
                                 | |
| 10 | 79 | 
                                    
                                    3.9%
                                 | |
| 11 | 79 | 
                                    
                                    3.9%
                                 | |
| 12 | 84 | 
                                    
                                    4.1%
                                 | |
| 44 | marked on card | 99 | 
                                    
                                    4.8%
                                 | 
| 66 | mother reported | 55 | 
                                    
                                    2.7%
                                 | 
| 97 | inconsistent | 0 | 
                                    
                                    0%
                                 | 
| 98 | dk | 0 | 
                                    
                                    0%
                                 | 
| 99 | missing | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 13304 |