| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 74 | 
                                    
                                    12.2%
                                 | 
| 2 | 23 | 
                                    
                                    3.8%
                                 | |
| 3 | 38 | 
                                    
                                    6.3%
                                 | |
| 4 | 34 | 
                                    
                                    5.6%
                                 | |
| 5 | 96 | 
                                    
                                    15.8%
                                 | |
| 6 | 66 | 
                                    
                                    10.9%
                                 | |
| 7 | 82 | 
                                    
                                    13.5%
                                 | |
| 8 | 74 | 
                                    
                                    12.2%
                                 | |
| 9 | 58 | 
                                    
                                    9.5%
                                 | |
| 10 | Very familiar | 63 | 
                                    
                                    10.4%
                                 | 
| Sysmiss | 16 |