| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 0 | 147 | 
                                                                 
                                    
                                    40.4%
                                 
                                                             | 
                                                        
                    |
| 2 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 5 | 13 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                                                        
                    |
| 10 | 43 | 
                                                                 
                                    
                                    11.8%
                                 
                                                             | 
                                                        
                    |
| 13 | 2 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 15 | 10 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 20 | 44 | 
                                                                 
                                    
                                    12.1%
                                 
                                                             | 
                                                        
                    |
| 25 | 8 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    |
| 30 | 35 | 
                                                                 
                                    
                                    9.6%
                                 
                                                             | 
                                                        
                    |
| 35 | 5 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 40 | 24 | 
                                                                 
                                    
                                    6.6%
                                 
                                                             | 
                                                        
                    |
| 45 | 3 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 50 | 12 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 55 | 2 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 60 | 7 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 70 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 80 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 90 | 2 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 95 | 1 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 100 | 2 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             |