| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | 85 | 
                                                                 
                                    
                                    49.1%
                                 
                                                             | 
                                                        
                    |
| 4 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 5 | 2 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    |
| 10 | 3 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 15 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 20 | 5 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    |
| 25 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 30 | 4 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 40 | 4 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 49 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 50 | 13 | 
                                                                 
                                    
                                    7.5%
                                 
                                                             | 
                                                        
                    |
| 55 | 2 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    |
| 60 | 4 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 65 | 4 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 70 | 4 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 80 | 2 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    |
| 90 | 4 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| 96 | 1 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 100 | 32 | 
                                                                 
                                    
                                    18.5%
                                 
                                                             |