| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 0 | 308 | 
                                                                 
                                    
                                    84.6%
                                 
                                                             | 
                                                        
                    |
| 5 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 10 | 10 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 12 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 20 | 6 | 
                                                                 
                                    
                                    1.6%
                                 
                                                             | 
                                                        
                    |
| 25 | 2 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 30 | 13 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                                                        
                    |
| 35 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 37 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 40 | 10 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 50 | 7 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 60 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             |