| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, the entire questionnaire | 69 | 
                                                                 
                                    
                                    1.6%
                                 
                                                             | 
                                                        
                    
| 2 | Yes, parts of the questionnaire | 11 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 3 | No, not used | 4120 | 
                                                                 
                                    
                                    97.3%
                                 
                                                             | 
                                                        
                    
| 9 | No response | 34 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 420 |