| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 | 
                                                                 
                                    
                                    3.9%
                                 
                                                             | 
                                                        
                    
| 0 | 71 | 
                                                                 
                                    
                                    30.5%
                                 
                                                             | 
                                                        
                    |
| 1 | 1 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 2 | 1 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 5 | 4 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 6 | 1 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 10 | 5 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 20 | 3 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 25 | 3 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 30 | 5 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 40 | 5 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 50 | 17 | 
                                                                 
                                    
                                    7.3%
                                 
                                                             | 
                                                        
                    |
| 60 | 6 | 
                                                                 
                                    
                                    2.6%
                                 
                                                             | 
                                                        
                    |
| 70 | 12 | 
                                                                 
                                    
                                    5.2%
                                 
                                                             | 
                                                        
                    |
| 75 | 5 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 80 | 10 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    |
| 85 | 1 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 90 | 8 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                                                        
                    |
| 92 | 1 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 95 | 5 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 98 | 2 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| 99 | 2 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| 100 | 56 | 
                                                                 
                                    
                                    24%
                                 
                                                             |