| Value | Category | Cases | |
|---|---|---|---|
| 0 | not weighed | 615 | 
                                                                 
                                    
                                    37.7%
                                 
                                                             | 
                                                        
                    
| 1 | from card | 237 | 
                                                                 
                                    
                                    14.5%
                                 
                                                             | 
                                                        
                    
| 2 | from recall | 755 | 
                                                                 
                                    
                                    46.3%
                                 
                                                             | 
                                                        
                    
| 8 | dk | 4 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 9 | special answers | 21 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    
| 11 | .Z | 17122 |