| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 18 | 
                                    
                                    4.7%
                                 | 
| 2 | 11 | 
                                    
                                    2.9%
                                 | |
| 3 | 11 | 
                                    
                                    2.9%
                                 | |
| 4 | 16 | 
                                    
                                    4.2%
                                 | |
| 5 | 56 | 
                                    
                                    14.6%
                                 | |
| 6 | 40 | 
                                    
                                    10.4%
                                 | |
| 7 | 67 | 
                                    
                                    17.4%
                                 | |
| 8 | 67 | 
                                    
                                    17.4%
                                 | |
| 9 | 35 | 
                                    
                                    9.1%
                                 | |
| 10 | Very familiar | 63 | 
                                    
                                    16.4%
                                 | 
| Sysmiss | 45 |