| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 | 
                                                                 
                                    
                                    7.8%
                                 
                                                             | 
                                                        
                    
| -8 | Refusal (spontaneous) | 15 | 
                                                                 
                                    
                                    4.2%
                                 
                                                             | 
                                                        
                    
| 0 | 62 | 
                                                                 
                                    
                                    17.2%
                                 
                                                             | 
                                                        
                    |
| 1 | 6 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 2 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 3 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 5 | 6 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 6 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 7 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 8 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 10 | 6 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 11 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 12 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 13 | 4 | 
                                                                 
                                    
                                    1.1%
                                 
                                                             | 
                                                        
                    |
| 14 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 15 | 7 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 16 | 5 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 17 | 5 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 18 | 6 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 19 | 6 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 20 | 99 | 
                                                                 
                                    
                                    27.4%
                                 
                                                             | 
                                                        
                    |
| 21 | 14 | 
                                                                 
                                    
                                    3.9%
                                 
                                                             | 
                                                        
                    |
| 22 | 37 | 
                                                                 
                                    
                                    10.2%
                                 
                                                             | 
                                                        
                    |
| 23 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 24 | 12 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 25 | 8 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    |
| 26 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 28 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 30 | 2 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 32 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 35 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 37 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 50 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 60 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             |