| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 39 | 
                                                                 
                                    
                                    9.9%
                                 
                                                             | 
                                                        
                    
| -8 | Refusal (spontaneous) | 6 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    
| 0 | 32 | 
                                                                 
                                    
                                    8.2%
                                 
                                                             | 
                                                        
                    |
| 1 | 51 | 
                                                                 
                                    
                                    13%
                                 
                                                             | 
                                                        
                    |
| 2 | 37 | 
                                                                 
                                    
                                    9.4%
                                 
                                                             | 
                                                        
                    |
| 3 | 67 | 
                                                                 
                                    
                                    17.1%
                                 
                                                             | 
                                                        
                    |
| 4 | 11 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    |
| 5 | 54 | 
                                                                 
                                    
                                    13.8%
                                 
                                                             | 
                                                        
                    |
| 6 | 6 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 7 | 4 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 8 | 4 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 10 | 43 | 
                                                                 
                                    
                                    11%
                                 
                                                             | 
                                                        
                    |
| 11 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 13 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 14 | 5 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 15 | 4 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 18 | 10 | 
                                                                 
                                    
                                    2.6%
                                 
                                                             | 
                                                        
                    |
| 20 | 8 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 25 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 30 | 7 | 
                                                                 
                                    
                                    1.8%
                                 
                                                             | 
                                                        
                    |
| 50 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             |