| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 19 | 
                                    
                                    1.3%
                                 | 
| 0 | 1305 | 
                                    
                                    92.2%
                                 | |
| 1 | 8 | 
                                    
                                    0.6%
                                 | |
| 2 | 7 | 
                                    
                                    0.5%
                                 | |
| 3 | 10 | 
                                    
                                    0.7%
                                 | |
| 4 | 6 | 
                                    
                                    0.4%
                                 | |
| 5 | 7 | 
                                    
                                    0.5%
                                 | |
| 6 | 7 | 
                                    
                                    0.5%
                                 | |
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| 10 | 10 | 
                                    
                                    0.7%
                                 | |
| 12 | 2 | 
                                    
                                    0.1%
                                 | |
| 13 | 2 | 
                                    
                                    0.1%
                                 | |
| 14 | 1 | 
                                    
                                    0.1%
                                 | |
| 15 | 4 | 
                                    
                                    0.3%
                                 | |
| 16 | 1 | 
                                    
                                    0.1%
                                 | |
| 18 | 1 | 
                                    
                                    0.1%
                                 | |
| 20 | 5 | 
                                    
                                    0.4%
                                 | |
| 25 | 2 | 
                                    
                                    0.1%
                                 | |
| 26 | 1 | 
                                    
                                    0.1%
                                 | |
| 27 | 1 | 
                                    
                                    0.1%
                                 | |
| 28 | 1 | 
                                    
                                    0.1%
                                 | |
| 30 | 3 | 
                                    
                                    0.2%
                                 | |
| 35 | 1 | 
                                    
                                    0.1%
                                 | |
| 42 | 1 | 
                                    
                                    0.1%
                                 | |
| 50 | 2 | 
                                    
                                    0.1%
                                 | |
| 60 | 1 | 
                                    
                                    0.1%
                                 | |
| 96 | 1 | 
                                    
                                    0.1%
                                 | |
| 110 | 1 | 
                                    
                                    0.1%
                                 | |
| 200 | 1 | 
                                    
                                    0.1%
                                 | |
| 210 | 1 | 
                                    
                                    0.1%
                                 | |
| 400 | 1 | 
                                    
                                    0.1%
                                 | |
| 620 | 1 | 
                                    
                                    0.1%
                                 | |
| 1000 | 1 | 
                                    
                                    0.1%
                                 |