| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 40 | 
                                    
                                    14%
                                 | 
| 2 | 30 | 
                                    
                                    10.5%
                                 | |
| 3 | 24 | 
                                    
                                    8.4%
                                 | |
| 4 | 17 | 
                                    
                                    5.9%
                                 | |
| 5 | 58 | 
                                    
                                    20.3%
                                 | |
| 6 | 31 | 
                                    
                                    10.8%
                                 | |
| 7 | 27 | 
                                    
                                    9.4%
                                 | |
| 8 | 27 | 
                                    
                                    9.4%
                                 | |
| 9 | 12 | 
                                    
                                    4.2%
                                 | |
| 10 | Very familiar | 20 | 
                                    
                                    7%
                                 | 
| Sysmiss | 15 |