| Value | Category | Cases | |
|---|---|---|---|
| -3 | Fieldwork error | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -1 | Missing due to skip | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | 0 | 6441 | 
                                                                 
                                    
                                    46.7%
                                 
                                                             | 
                                                        
                    
| 1 | 1 | 2620 | 
                                                                 
                                    
                                    19%
                                 
                                                             | 
                                                        
                    
| 2 | 2 | 2531 | 
                                                                 
                                    
                                    18.3%
                                 
                                                             | 
                                                        
                    
| 3 | 3 | 1320 | 
                                                                 
                                    
                                    9.6%
                                 
                                                             | 
                                                        
                    
| 4 | 4+ | 883 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             |