| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 105 | 
                                    
                                    37.4%
                                 | 
| 2 | 48 | 
                                    
                                    17.1%
                                 | |
| 3 | 27 | 
                                    
                                    9.6%
                                 | |
| 4 | 20 | 
                                    
                                    7.1%
                                 | |
| 5 | 38 | 
                                    
                                    13.5%
                                 | |
| 6 | 13 | 
                                    
                                    4.6%
                                 | |
| 7 | 10 | 
                                    
                                    3.6%
                                 | |
| 8 | 7 | 
                                    
                                    2.5%
                                 | |
| 9 | 2 | 
                                    
                                    0.7%
                                 | |
| 10 | Very familiar | 11 | 
                                    
                                    3.9%
                                 | 
| Sysmiss | 20 |