| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 3 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 4 | 5 | 
                                                                 
                                    
                                    2.4%
                                 
                                                             | 
                                                        
                    |
| 5 | 39 | 
                                                                 
                                    
                                    18.7%
                                 
                                                             | 
                                                        
                    |
| 6 | 30 | 
                                                                 
                                    
                                    14.4%
                                 
                                                             | 
                                                        
                    |
| 7 | 27 | 
                                                                 
                                    
                                    12.9%
                                 
                                                             | 
                                                        
                    |
| 8 | 17 | 
                                                                 
                                    
                                    8.1%
                                 
                                                             | 
                                                        
                    |
| 9 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 10 | 10 | 
                                                                 
                                    
                                    4.8%
                                 
                                                             | 
                                                        
                    |
| 11 | 4 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 12 | 4 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 13 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 14 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 15 | 6 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    |
| 16 | 2 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 18 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 20 | 8 | 
                                                                 
                                    
                                    3.8%
                                 
                                                             | 
                                                        
                    |
| 21 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 22 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 23 | 5 | 
                                                                 
                                    
                                    2.4%
                                 
                                                             | 
                                                        
                    |
| 24 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 25 | 6 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    |
| 28 | 2 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 30 | 4 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 35 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 40 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 45 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 48 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 55 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 56 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 60 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 100 | 2 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 102 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 105 | 3 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 109 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 115 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 118 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 120 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 150 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             |