| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 | 
                                    
                                    0.3%
                                 | 
| 0 | 57 | 
                                    
                                    15.7%
                                 | |
| 1 | 2 | 
                                    
                                    0.6%
                                 | |
| 2 | 2 | 
                                    
                                    0.6%
                                 | |
| 3 | 1 | 
                                    
                                    0.3%
                                 | |
| 5 | 4 | 
                                    
                                    1.1%
                                 | |
| 10 | 20 | 
                                    
                                    5.5%
                                 | |
| 15 | 4 | 
                                    
                                    1.1%
                                 | |
| 20 | 20 | 
                                    
                                    5.5%
                                 | |
| 30 | 27 | 
                                    
                                    7.4%
                                 | |
| 35 | 1 | 
                                    
                                    0.3%
                                 | |
| 40 | 17 | 
                                    
                                    4.7%
                                 | |
| 50 | 41 | 
                                    
                                    11.3%
                                 | |
| 60 | 12 | 
                                    
                                    3.3%
                                 | |
| 65 | 1 | 
                                    
                                    0.3%
                                 | |
| 70 | 23 | 
                                    
                                    6.3%
                                 | |
| 75 | 1 | 
                                    
                                    0.3%
                                 | |
| 80 | 21 | 
                                    
                                    5.8%
                                 | |
| 85 | 2 | 
                                    
                                    0.6%
                                 | |
| 90 | 9 | 
                                    
                                    2.5%
                                 | |
| 95 | 7 | 
                                    
                                    1.9%
                                 | |
| 97 | 2 | 
                                    
                                    0.6%
                                 | |
| 98 | 2 | 
                                    
                                    0.6%
                                 | |
| 99 | 1 | 
                                    
                                    0.3%
                                 | |
| 100 | 85 | 
                                    
                                    23.4%
                                 |