| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 120 | 
                                    
                                    40.5%
                                 | 
| 2 | 23 | 
                                    
                                    7.8%
                                 | |
| 3 | 25 | 
                                    
                                    8.4%
                                 | |
| 4 | 23 | 
                                    
                                    7.8%
                                 | |
| 5 | 26 | 
                                    
                                    8.8%
                                 | |
| 6 | 26 | 
                                    
                                    8.8%
                                 | |
| 7 | 10 | 
                                    
                                    3.4%
                                 | |
| 8 | 11 | 
                                    
                                    3.7%
                                 | |
| 9 | 9 | 
                                    
                                    3%
                                 | |
| 10 | Very familiar | 20 | 
                                    
                                    6.8%
                                 | 
| 11 | 3 | 
                                    
                                    1%
                                 | |
| Sysmiss | 30 |