| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 25 | 
                                    
                                    1.2%
                                 | 
| 1 | 1 | 142 | 
                                    
                                    7.1%
                                 | 
| 2 | 2 | 355 | 
                                    
                                    17.6%
                                 | 
| 3 | 3 | 436 | 
                                    
                                    21.7%
                                 | 
| 4 | 4 | 521 | 
                                    
                                    25.9%
                                 | 
| 5 | 5 | 309 | 
                                    
                                    15.4%
                                 | 
| 6 | 6 | 148 | 
                                    
                                    7.4%
                                 | 
| 7 | 49 | 
                                    
                                    2.4%
                                 | |
| 8 | 12 | 
                                    
                                    0.6%
                                 | |
| 9 | 13 | 
                                    
                                    0.6%
                                 | |
| 10 | 2 | 
                                    
                                    0.1%
                                 |