| Value | Category | Cases | |
|---|---|---|---|
| -5 | DE:Inapplicable; HT: Dropped out survey; Unknown | 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 | 147 | 
                                                                 
                                    
                                    9.8%
                                 
                                                             | 
                                                        
                    
| 2 | Sometimes | 247 | 
                                                                 
                                    
                                    16.4%
                                 
                                                             | 
                                                        
                    
| 3 | Rarely | 352 | 
                                                                 
                                    
                                    23.4%
                                 
                                                             | 
                                                        
                    
| 4 | Never | 760 | 
                                                                 
                                    
                                    50.5%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 17 |