| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 3 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    
| 2 | 5 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    |
| 3 | 5 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    |
| 4 | 3 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    |
| 5 | 12 | 
                                                                 
                                    
                                    8.9%
                                 
                                                             | 
                                                        
                    |
| 6 | 16 | 
                                                                 
                                    
                                    11.9%
                                 
                                                             | 
                                                        
                    |
| 7 | 21 | 
                                                                 
                                    
                                    15.6%
                                 
                                                             | 
                                                        
                    |
| 8 | 24 | 
                                                                 
                                    
                                    17.8%
                                 
                                                             | 
                                                        
                    |
| 9 | 25 | 
                                                                 
                                    
                                    18.5%
                                 
                                                             | 
                                                        
                    |
| 10 | Extremely familiar | 21 | 
                                                                 
                                    
                                    15.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3 |