| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not familiar at all | 72 | 
                                    
                                    25.5%
                                 | 
| 2 | 28 | 
                                    
                                    9.9%
                                 | |
| 3 | 25 | 
                                    
                                    8.9%
                                 | |
| 4 | 28 | 
                                    
                                    9.9%
                                 | |
| 5 | 43 | 
                                    
                                    15.2%
                                 | |
| 6 | 25 | 
                                    
                                    8.9%
                                 | |
| 7 | 21 | 
                                    
                                    7.4%
                                 | |
| 8 | 15 | 
                                    
                                    5.3%
                                 | |
| 9 | 18 | 
                                    
                                    6.4%
                                 | |
| 10 | Very familiar | 7 | 
                                    
                                    2.5%
                                 | 
| Sysmiss | 19 |