| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 | 
                                    
                                    0.8%
                                 | 
| 1 | 3 | 
                                    
                                    0.8%
                                 | |
| 2 | 26 | 
                                    
                                    7.2%
                                 | |
| 3 | 35 | 
                                    
                                    9.6%
                                 | |
| 4 | 38 | 
                                    
                                    10.5%
                                 | |
| 5 | 49 | 
                                    
                                    13.5%
                                 | |
| 6 | 31 | 
                                    
                                    8.5%
                                 | |
| 7 | 25 | 
                                    
                                    6.9%
                                 | |
| 8 | 18 | 
                                    
                                    5%
                                 | |
| 9 | 8 | 
                                    
                                    2.2%
                                 | |
| 10 | 28 | 
                                    
                                    7.7%
                                 | |
| 11 | 7 | 
                                    
                                    1.9%
                                 | |
| 12 | 7 | 
                                    
                                    1.9%
                                 | |
| 13 | 6 | 
                                    
                                    1.7%
                                 | |
| 14 | 6 | 
                                    
                                    1.7%
                                 | |
| 15 | 11 | 
                                    
                                    3%
                                 | |
| 16 | 1 | 
                                    
                                    0.3%
                                 | |
| 17 | 1 | 
                                    
                                    0.3%
                                 | |
| 18 | 4 | 
                                    
                                    1.1%
                                 | |
| 20 | 7 | 
                                    
                                    1.9%
                                 | |
| 22 | 4 | 
                                    
                                    1.1%
                                 | |
| 24 | 2 | 
                                    
                                    0.6%
                                 | |
| 25 | 4 | 
                                    
                                    1.1%
                                 | |
| 26 | 1 | 
                                    
                                    0.3%
                                 | |
| 28 | 1 | 
                                    
                                    0.3%
                                 | |
| 29 | 1 | 
                                    
                                    0.3%
                                 | |
| 30 | 6 | 
                                    
                                    1.7%
                                 | |
| 32 | 1 | 
                                    
                                    0.3%
                                 | |
| 35 | 4 | 
                                    
                                    1.1%
                                 | |
| 36 | 2 | 
                                    
                                    0.6%
                                 | |
| 40 | 2 | 
                                    
                                    0.6%
                                 | |
| 42 | 1 | 
                                    
                                    0.3%
                                 | |
| 45 | 1 | 
                                    
                                    0.3%
                                 | |
| 50 | 5 | 
                                    
                                    1.4%
                                 | |
| 55 | 1 | 
                                    
                                    0.3%
                                 | |
| 70 | 3 | 
                                    
                                    0.8%
                                 | |
| 80 | 2 | 
                                    
                                    0.6%
                                 | |
| 85 | 1 | 
                                    
                                    0.3%
                                 | |
| 88 | 1 | 
                                    
                                    0.3%
                                 | |
| 100 | 1 | 
                                    
                                    0.3%
                                 | |
| 120 | 1 | 
                                    
                                    0.3%
                                 | |
| 157 | 1 | 
                                    
                                    0.3%
                                 | |
| 200 | 2 | 
                                    
                                    0.6%
                                 | |
| 300 | 1 | 
                                    
                                    0.3%
                                 |