| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| 0 | 79 | 
                                    
                                    21.8%
                                 | |
| 1 | 32 | 
                                    
                                    8.8%
                                 | |
| 2 | 76 | 
                                    
                                    20.9%
                                 | |
| 3 | 45 | 
                                    
                                    12.4%
                                 | |
| 4 | 33 | 
                                    
                                    9.1%
                                 | |
| 5 | 25 | 
                                    
                                    6.9%
                                 | |
| 6 | 6 | 
                                    
                                    1.7%
                                 | |
| 7 | 5 | 
                                    
                                    1.4%
                                 | |
| 8 | 5 | 
                                    
                                    1.4%
                                 | |
| 9 | 1 | 
                                    
                                    0.3%
                                 | |
| 10 | 17 | 
                                    
                                    4.7%
                                 | |
| 11 | 2 | 
                                    
                                    0.6%
                                 | |
| 12 | 4 | 
                                    
                                    1.1%
                                 | |
| 14 | 1 | 
                                    
                                    0.3%
                                 | |
| 15 | 4 | 
                                    
                                    1.1%
                                 | |
| 16 | 2 | 
                                    
                                    0.6%
                                 | |
| 17 | 2 | 
                                    
                                    0.6%
                                 | |
| 19 | 1 | 
                                    
                                    0.3%
                                 | |
| 20 | 4 | 
                                    
                                    1.1%
                                 | |
| 21 | 3 | 
                                    
                                    0.8%
                                 | |
| 30 | 1 | 
                                    
                                    0.3%
                                 | |
| 37 | 2 | 
                                    
                                    0.6%
                                 | |
| 38 | 1 | 
                                    
                                    0.3%
                                 | |
| 40 | 1 | 
                                    
                                    0.3%
                                 | |
| 47 | 1 | 
                                    
                                    0.3%
                                 | |
| 50 | 2 | 
                                    
                                    0.6%
                                 | |
| 55 | 1 | 
                                    
                                    0.3%
                                 | |
| 56 | 1 | 
                                    
                                    0.3%
                                 | |
| 80 | 1 | 
                                    
                                    0.3%
                                 | |
| 100 | 2 | 
                                    
                                    0.6%
                                 | |
| 104 | 1 | 
                                    
                                    0.3%
                                 | |
| 200 | 1 | 
                                    
                                    0.3%
                                 | |
| 300 | 1 | 
                                    
                                    0.3%
                                 |