| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 | 
                                    
                                    0.6%
                                 | 
| 0 | 66 | 
                                    
                                    21.2%
                                 | |
| 1 | 28 | 
                                    
                                    9%
                                 | |
| 2 | 36 | 
                                    
                                    11.6%
                                 | |
| 3 | 36 | 
                                    
                                    11.6%
                                 | |
| 4 | 12 | 
                                    
                                    3.9%
                                 | |
| 5 | 29 | 
                                    
                                    9.3%
                                 | |
| 6 | 10 | 
                                    
                                    3.2%
                                 | |
| 7 | 10 | 
                                    
                                    3.2%
                                 | |
| 8 | 4 | 
                                    
                                    1.3%
                                 | |
| 9 | 3 | 
                                    
                                    1%
                                 | |
| 10 | 23 | 
                                    
                                    7.4%
                                 | |
| 11 | 1 | 
                                    
                                    0.3%
                                 | |
| 12 | 3 | 
                                    
                                    1%
                                 | |
| 13 | 2 | 
                                    
                                    0.6%
                                 | |
| 14 | 4 | 
                                    
                                    1.3%
                                 | |
| 15 | 9 | 
                                    
                                    2.9%
                                 | |
| 16 | 3 | 
                                    
                                    1%
                                 | |
| 18 | 1 | 
                                    
                                    0.3%
                                 | |
| 20 | 6 | 
                                    
                                    1.9%
                                 | |
| 21 | 1 | 
                                    
                                    0.3%
                                 | |
| 22 | 1 | 
                                    
                                    0.3%
                                 | |
| 23 | 1 | 
                                    
                                    0.3%
                                 | |
| 25 | 4 | 
                                    
                                    1.3%
                                 | |
| 30 | 4 | 
                                    
                                    1.3%
                                 | |
| 31 | 1 | 
                                    
                                    0.3%
                                 | |
| 35 | 2 | 
                                    
                                    0.6%
                                 | |
| 40 | 1 | 
                                    
                                    0.3%
                                 | |
| 50 | 1 | 
                                    
                                    0.3%
                                 | |
| 54 | 1 | 
                                    
                                    0.3%
                                 | |
| 60 | 1 | 
                                    
                                    0.3%
                                 | |
| 98 | 1 | 
                                    
                                    0.3%
                                 | |
| 100 | 1 | 
                                    
                                    0.3%
                                 | |
| 120 | 1 | 
                                    
                                    0.3%
                                 | |
| 150 | 1 | 
                                    
                                    0.3%
                                 | |
| 348 | 1 | 
                                    
                                    0.3%
                                 |