| 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 | 117 | 
                                                                 
                                    
                                    7.8%
                                 
                                                             | 
                                                        
                    
| 2 | Sometimes | 232 | 
                                                                 
                                    
                                    15.4%
                                 
                                                             | 
                                                        
                    
| 3 | Rarely | 353 | 
                                                                 
                                    
                                    23.5%
                                 
                                                             | 
                                                        
                    
| 4 | Never | 803 | 
                                                                 
                                    
                                    53.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 18 |