| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 41 | 
                                    
                                    10.2%
                                 | 
| 1 | 75 | 
                                    
                                    18.7%
                                 | |
| 2 | 54 | 
                                    
                                    13.4%
                                 | |
| 3 | 35 | 
                                    
                                    8.7%
                                 | |
| 4 | 19 | 
                                    
                                    4.7%
                                 | |
| 5 | 29 | 
                                    
                                    7.2%
                                 | |
| 6 | 13 | 
                                    
                                    3.2%
                                 | |
| 7 | 13 | 
                                    
                                    3.2%
                                 | |
| 8 | 7 | 
                                    
                                    1.7%
                                 | |
| 9 | 2 | 
                                    
                                    0.5%
                                 | |
| 10 | 18 | 
                                    
                                    4.5%
                                 | |
| 11 | 3 | 
                                    
                                    0.7%
                                 | |
| 12 | 7 | 
                                    
                                    1.7%
                                 | |
| 14 | 1 | 
                                    
                                    0.2%
                                 | |
| 15 | 4 | 
                                    
                                    1%
                                 | |
| 16 | 1 | 
                                    
                                    0.2%
                                 | |
| 18 | 3 | 
                                    
                                    0.7%
                                 | |
| 20 | 12 | 
                                    
                                    3%
                                 | |
| 21 | 1 | 
                                    
                                    0.2%
                                 | |
| 22 | 1 | 
                                    
                                    0.2%
                                 | |
| 23 | 1 | 
                                    
                                    0.2%
                                 | |
| 25 | 1 | 
                                    
                                    0.2%
                                 | |
| 28 | 1 | 
                                    
                                    0.2%
                                 | |
| 29 | 1 | 
                                    
                                    0.2%
                                 | |
| 30 | 7 | 
                                    
                                    1.7%
                                 | |
| 35 | 2 | 
                                    
                                    0.5%
                                 | |
| 37 | 1 | 
                                    
                                    0.2%
                                 | |
| 38 | 1 | 
                                    
                                    0.2%
                                 | |
| 40 | 3 | 
                                    
                                    0.7%
                                 | |
| 42 | 1 | 
                                    
                                    0.2%
                                 | |
| 45 | 2 | 
                                    
                                    0.5%
                                 | |
| 50 | 9 | 
                                    
                                    2.2%
                                 | |
| 60 | 1 | 
                                    
                                    0.2%
                                 | |
| 63 | 1 | 
                                    
                                    0.2%
                                 | |
| 70 | 1 | 
                                    
                                    0.2%
                                 | |
| 80 | 1 | 
                                    
                                    0.2%
                                 | |
| 83 | 1 | 
                                    
                                    0.2%
                                 | |
| 85 | 1 | 
                                    
                                    0.2%
                                 | |
| 90 | 3 | 
                                    
                                    0.7%
                                 | |
| 100 | 4 | 
                                    
                                    1%
                                 | |
| 104 | 2 | 
                                    
                                    0.5%
                                 | |
| 116 | 1 | 
                                    
                                    0.2%
                                 | |
| 117 | 1 | 
                                    
                                    0.2%
                                 | |
| 125 | 1 | 
                                    
                                    0.2%
                                 | |
| 127 | 1 | 
                                    
                                    0.2%
                                 | |
| 136 | 1 | 
                                    
                                    0.2%
                                 | |
| 150 | 2 | 
                                    
                                    0.5%
                                 | |
| 170 | 1 | 
                                    
                                    0.2%
                                 | |
| 190 | 1 | 
                                    
                                    0.2%
                                 | |
| 200 | 1 | 
                                    
                                    0.2%
                                 | |
| 210 | 1 | 
                                    
                                    0.2%
                                 | |
| 273 | 1 | 
                                    
                                    0.2%
                                 | |
| 282 | 1 | 
                                    
                                    0.2%
                                 | |
| 300 | 2 | 
                                    
                                    0.5%
                                 | |
| 500 | 1 | 
                                    
                                    0.2%
                                 | |
| 800 | 1 | 
                                    
                                    0.2%
                                 | |
| 1300 | 1 | 
                                    
                                    0.2%
                                 |