| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 34 | 
                                    
                                    5.6%
                                 | 
| 0 | 253 | 
                                    
                                    41.3%
                                 | |
| 1 | 2 | 
                                    
                                    0.3%
                                 | |
| 2 | 3 | 
                                    
                                    0.5%
                                 | |
| 3 | 1 | 
                                    
                                    0.2%
                                 | |
| 5 | 9 | 
                                    
                                    1.5%
                                 | |
| 10 | 37 | 
                                    
                                    6%
                                 | |
| 11 | 2 | 
                                    
                                    0.3%
                                 | |
| 13 | 1 | 
                                    
                                    0.2%
                                 | |
| 14 | 1 | 
                                    
                                    0.2%
                                 | |
| 15 | 4 | 
                                    
                                    0.7%
                                 | |
| 16 | 1 | 
                                    
                                    0.2%
                                 | |
| 18 | 1 | 
                                    
                                    0.2%
                                 | |
| 20 | 53 | 
                                    
                                    8.7%
                                 | |
| 22 | 1 | 
                                    
                                    0.2%
                                 | |
| 24 | 1 | 
                                    
                                    0.2%
                                 | |
| 25 | 6 | 
                                    
                                    1%
                                 | |
| 28 | 1 | 
                                    
                                    0.2%
                                 | |
| 30 | 52 | 
                                    
                                    8.5%
                                 | |
| 32 | 1 | 
                                    
                                    0.2%
                                 | |
| 33 | 1 | 
                                    
                                    0.2%
                                 | |
| 35 | 4 | 
                                    
                                    0.7%
                                 | |
| 40 | 30 | 
                                    
                                    4.9%
                                 | |
| 41 | 1 | 
                                    
                                    0.2%
                                 | |
| 45 | 1 | 
                                    
                                    0.2%
                                 | |
| 46 | 1 | 
                                    
                                    0.2%
                                 | |
| 47 | 2 | 
                                    
                                    0.3%
                                 | |
| 50 | 48 | 
                                    
                                    7.8%
                                 | |
| 55 | 1 | 
                                    
                                    0.2%
                                 | |
| 59 | 2 | 
                                    
                                    0.3%
                                 | |
| 60 | 15 | 
                                    
                                    2.5%
                                 | |
| 64 | 1 | 
                                    
                                    0.2%
                                 | |
| 65 | 2 | 
                                    
                                    0.3%
                                 | |
| 67 | 1 | 
                                    
                                    0.2%
                                 | |
| 70 | 13 | 
                                    
                                    2.1%
                                 | |
| 75 | 4 | 
                                    
                                    0.7%
                                 | |
| 80 | 10 | 
                                    
                                    1.6%
                                 | |
| 83 | 2 | 
                                    
                                    0.3%
                                 | |
| 90 | 2 | 
                                    
                                    0.3%
                                 | |
| 100 | 7 | 
                                    
                                    1.1%
                                 |