| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    
| 0 | 34 | 
                                                                 
                                    
                                    22.7%
                                 
                                                             | 
                                                        
                    |
| 1 | 4 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 2 | 3 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 3 | 7 | 
                                                                 
                                    
                                    4.7%
                                 
                                                             | 
                                                        
                    |
| 4 | 5 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 5 | 5 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 6 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 7 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 8 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 10 | 14 | 
                                                                 
                                    
                                    9.3%
                                 
                                                             | 
                                                        
                    |
| 11 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 13 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 14 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 15 | 4 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 16 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 17 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 18 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 19 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 20 | 5 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 23 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 25 | 3 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 27 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 30 | 10 | 
                                                                 
                                    
                                    6.7%
                                 
                                                             | 
                                                        
                    |
| 32 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 33 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 34 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 35 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 36 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 40 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 42 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 46 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 48 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 50 | 4 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    |
| 55 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 58 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 59 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 60 | 3 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 75 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 80 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 100 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 110 | 3 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 120 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 140 | 2 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 150 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 175 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 210 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 270 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 425 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             |