| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 111 | 
                                    
                                    37%
                                 | 
| 2 | 30 | 
                                    
                                    10%
                                 | |
| 3 | 25 | 
                                    
                                    8.3%
                                 | |
| 4 | 16 | 
                                    
                                    5.3%
                                 | |
| 5 | 22 | 
                                    
                                    7.3%
                                 | |
| 6 | 27 | 
                                    
                                    9%
                                 | |
| 7 | 10 | 
                                    
                                    3.3%
                                 | |
| 8 | 16 | 
                                    
                                    5.3%
                                 | |
| 9 | 16 | 
                                    
                                    5.3%
                                 | |
| 10 | Very familiar | 26 | 
                                    
                                    8.7%
                                 | 
| 11 | 1 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 26 |