| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 9 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 1 | 3 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| 2 | 23 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 3 | 38 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 4 | 98 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 5 | 596 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 6 | 932 | 
                                                                 
                                    
                                    6.2%
                                 
                                                             | 
                                                        
                    |
| 7 | 2784 | 
                                                                 
                                    
                                    18.6%
                                 
                                                             | 
                                                        
                    |
| 8 | 4086 | 
                                                                 
                                    
                                    27.3%
                                 
                                                             | 
                                                        
                    |
| 9 | 943 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    |
| 10 | always | 531 | 
                                                                 
                                    
                                    3.5%
                                 
                                                             | 
                                                        
                    
| -8 | other error | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -7 | filter error | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -3 | inapplicable | 4909 | 
                                                                 
                                    
                                    32.8%
                                 
                                                             | 
                                                        
                    
| -2 | no answer | 3 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -1 | does not know | 6 | 
                                                                 
                                    
                                    0%
                                 
                                                             |