| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 22 | 
                                    
                                    1.6%
                                 | 
| 0 | 1244 | 
                                    
                                    87.9%
                                 | |
| 1 | 2 | 
                                    
                                    0.1%
                                 | |
| 2 | 4 | 
                                    
                                    0.3%
                                 | |
| 3 | 3 | 
                                    
                                    0.2%
                                 | |
| 5 | 9 | 
                                    
                                    0.6%
                                 | |
| 10 | 9 | 
                                    
                                    0.6%
                                 | |
| 11 | 1 | 
                                    
                                    0.1%
                                 | |
| 15 | 3 | 
                                    
                                    0.2%
                                 | |
| 18 | 1 | 
                                    
                                    0.1%
                                 | |
| 20 | 21 | 
                                    
                                    1.5%
                                 | |
| 25 | 7 | 
                                    
                                    0.5%
                                 | |
| 28 | 1 | 
                                    
                                    0.1%
                                 | |
| 30 | 14 | 
                                    
                                    1%
                                 | |
| 35 | 2 | 
                                    
                                    0.1%
                                 | |
| 38 | 1 | 
                                    
                                    0.1%
                                 | |
| 40 | 8 | 
                                    
                                    0.6%
                                 | |
| 41 | 1 | 
                                    
                                    0.1%
                                 | |
| 45 | 1 | 
                                    
                                    0.1%
                                 | |
| 50 | 16 | 
                                    
                                    1.1%
                                 | |
| 55 | 1 | 
                                    
                                    0.1%
                                 | |
| 60 | 10 | 
                                    
                                    0.7%
                                 | |
| 70 | 5 | 
                                    
                                    0.4%
                                 | |
| 75 | 2 | 
                                    
                                    0.1%
                                 | |
| 80 | 6 | 
                                    
                                    0.4%
                                 | |
| 85 | 1 | 
                                    
                                    0.1%
                                 | |
| 90 | 6 | 
                                    
                                    0.4%
                                 | |
| 95 | 4 | 
                                    
                                    0.3%
                                 | |
| 97 | 1 | 
                                    
                                    0.1%
                                 | |
| 99 | 1 | 
                                    
                                    0.1%
                                 | |
| 100 | 9 | 
                                    
                                    0.6%
                                 |