| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 68 | 
                                                                 
                                    
                                    37%
                                 
                                                             | 
                                                        
                    
| 2 | 24 | 
                                                                 
                                    
                                    13%
                                 
                                                             | 
                                                        
                    |
| 3 | 19 | 
                                                                 
                                    
                                    10.3%
                                 
                                                             | 
                                                        
                    |
| 4 | 10 | 
                                                                 
                                    
                                    5.4%
                                 
                                                             | 
                                                        
                    |
| 5 | 28 | 
                                                                 
                                    
                                    15.2%
                                 
                                                             | 
                                                        
                    |
| 6 | 11 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    |
| 7 | 6 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 8 | 6 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 9 | 3 | 
                                                                 
                                    
                                    1.6%
                                 
                                                             | 
                                                        
                    |
| 10 | Very familiar | 9 | 
                                                                 
                                    
                                    4.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 53 |