| Value | Category | Cases | |
|---|---|---|---|
| -5 | Missing; RU: Inappropriate response | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -4 | Not asked in survey | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -3 | Not applicable ('Have not done') | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -2 | No answer | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -1 | Don´t know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Not at all | 17 | 
                                                                 
                                    
                                    32.7%
                                 
                                                             | 
                                                        
                    
| 2 | Once | 16 | 
                                                                 
                                    
                                    30.8%
                                 
                                                             | 
                                                        
                    
| 3 | Twice | 8 | 
                                                                 
                                    
                                    15.4%
                                 
                                                             | 
                                                        
                    
| 4 | Three times | 1 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    
| 5 | More than three times | 10 | 
                                                                 
                                    
                                    19.2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1948 |