| Value | Category | Cases | |
|---|---|---|---|
| -5 | DE,SE:Inapplicable ; HT: Dropped out survey | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -4 | Not asked in survey | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -3 | Not applicable | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -2 | No answer | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -1 | Don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Often | 49 | 
                                                                 
                                    
                                    4.1%
                                 
                                                             | 
                                                        
                    
| 2 | Sometimes | 147 | 
                                                                 
                                    
                                    12.3%
                                 
                                                             | 
                                                        
                    
| 3 | Rarely | 163 | 
                                                                 
                                    
                                    13.6%
                                 
                                                             | 
                                                        
                    
| 4 | Never | 841 | 
                                                                 
                                    
                                    70.1%
                                 
                                                             |