| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 5 | 
                                    
                                    4.5%
                                 | 
| 2 | 5 | 
                                    
                                    4.5%
                                 | |
| 3 | 6 | 
                                    
                                    5.4%
                                 | |
| 4 | 4 | 
                                    
                                    3.6%
                                 | |
| 5 | 11 | 
                                    
                                    9.8%
                                 | |
| 6 | 16 | 
                                    
                                    14.3%
                                 | |
| 7 | 14 | 
                                    
                                    12.5%
                                 | |
| 8 | 18 | 
                                    
                                    16.1%
                                 | |
| 9 | 9 | 
                                    
                                    8%
                                 | |
| 10 | Very familiar | 24 | 
                                    
                                    21.4%
                                 |