| Value | Category | Cases | |
|---|---|---|---|
| 0 | not given | 167 | 
                                    
                                    8.2%
                                 | 
| 1 | 204 | 
                                    
                                    10%
                                 | |
| 2 | 198 | 
                                    
                                    9.7%
                                 | |
| 3 | 182 | 
                                    
                                    8.9%
                                 | |
| 4 | 132 | 
                                    
                                    6.4%
                                 | |
| 5 | 147 | 
                                    
                                    7.2%
                                 | |
| 6 | 143 | 
                                    
                                    7%
                                 | |
| 7 | 104 | 
                                    
                                    5.1%
                                 | |
| 8 | 120 | 
                                    
                                    5.9%
                                 | |
| 9 | 122 | 
                                    
                                    6%
                                 | |
| 10 | 134 | 
                                    
                                    6.5%
                                 | |
| 11 | 149 | 
                                    
                                    7.3%
                                 | |
| 12 | 167 | 
                                    
                                    8.2%
                                 | |
| 44 | marked on card | 58 | 
                                    
                                    2.8%
                                 | 
| 66 | mother reported | 20 | 
                                    
                                    1%
                                 | 
| 97 | inconsistent | 0 | 
                                    
                                    0%
                                 | 
| 98 | dk | 0 | 
                                    
                                    0%
                                 | 
| 99 | missing | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 13304 |