| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 73 | 
                                    
                                    5.2%
                                 | 
| 0 | 775 | 
                                    
                                    54.7%
                                 | |
| 1 | 42 | 
                                    
                                    3%
                                 | |
| 2 | 86 | 
                                    
                                    6.1%
                                 | |
| 3 | 36 | 
                                    
                                    2.5%
                                 | |
| 4 | 24 | 
                                    
                                    1.7%
                                 | |
| 5 | 62 | 
                                    
                                    4.4%
                                 | |
| 6 | 16 | 
                                    
                                    1.1%
                                 | |
| 7 | 9 | 
                                    
                                    0.6%
                                 | |
| 8 | 13 | 
                                    
                                    0.9%
                                 | |
| 9 | 4 | 
                                    
                                    0.3%
                                 | |
| 10 | 52 | 
                                    
                                    3.7%
                                 | |
| 11 | 2 | 
                                    
                                    0.1%
                                 | |
| 12 | 6 | 
                                    
                                    0.4%
                                 | |
| 13 | 2 | 
                                    
                                    0.1%
                                 | |
| 14 | 2 | 
                                    
                                    0.1%
                                 | |
| 15 | 19 | 
                                    
                                    1.3%
                                 | |
| 16 | 1 | 
                                    
                                    0.1%
                                 | |
| 17 | 3 | 
                                    
                                    0.2%
                                 | |
| 18 | 1 | 
                                    
                                    0.1%
                                 | |
| 19 | 2 | 
                                    
                                    0.1%
                                 | |
| 20 | 45 | 
                                    
                                    3.2%
                                 | |
| 21 | 2 | 
                                    
                                    0.1%
                                 | |
| 22 | 1 | 
                                    
                                    0.1%
                                 | |
| 23 | 1 | 
                                    
                                    0.1%
                                 | |
| 24 | 1 | 
                                    
                                    0.1%
                                 | |
| 25 | 6 | 
                                    
                                    0.4%
                                 | |
| 28 | 4 | 
                                    
                                    0.3%
                                 | |
| 30 | 24 | 
                                    
                                    1.7%
                                 | |
| 32 | 1 | 
                                    
                                    0.1%
                                 | |
| 34 | 1 | 
                                    
                                    0.1%
                                 | |
| 35 | 8 | 
                                    
                                    0.6%
                                 | |
| 36 | 1 | 
                                    
                                    0.1%
                                 | |
| 40 | 11 | 
                                    
                                    0.8%
                                 | |
| 45 | 2 | 
                                    
                                    0.1%
                                 | |
| 47 | 1 | 
                                    
                                    0.1%
                                 | |
| 48 | 1 | 
                                    
                                    0.1%
                                 | |
| 50 | 18 | 
                                    
                                    1.3%
                                 | |
| 53 | 1 | 
                                    
                                    0.1%
                                 | |
| 55 | 1 | 
                                    
                                    0.1%
                                 | |
| 60 | 12 | 
                                    
                                    0.8%
                                 | |
| 63 | 2 | 
                                    
                                    0.1%
                                 | |
| 68 | 1 | 
                                    
                                    0.1%
                                 | |
| 70 | 5 | 
                                    
                                    0.4%
                                 | |
| 79 | 1 | 
                                    
                                    0.1%
                                 | |
| 80 | 7 | 
                                    
                                    0.5%
                                 | |
| 90 | 3 | 
                                    
                                    0.2%
                                 | |
| 100 | 5 | 
                                    
                                    0.4%
                                 | |
| 110 | 2 | 
                                    
                                    0.1%
                                 | |
| 120 | 1 | 
                                    
                                    0.1%
                                 | |
| 130 | 2 | 
                                    
                                    0.1%
                                 | |
| 150 | 1 | 
                                    
                                    0.1%
                                 | |
| 180 | 1 | 
                                    
                                    0.1%
                                 | |
| 200 | 3 | 
                                    
                                    0.2%
                                 | |
| 260 | 1 | 
                                    
                                    0.1%
                                 | |
| 280 | 1 | 
                                    
                                    0.1%
                                 | |
| 285 | 1 | 
                                    
                                    0.1%
                                 | |
| 300 | 1 | 
                                    
                                    0.1%
                                 | |
| 360 | 1 | 
                                    
                                    0.1%
                                 | |
| 400 | 1 | 
                                    
                                    0.1%
                                 | |
| 430 | 1 | 
                                    
                                    0.1%
                                 | |
| 500 | 2 | 
                                    
                                    0.1%
                                 | |
| 580 | 1 | 
                                    
                                    0.1%
                                 |