| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| 0 | 142 | 
                                    
                                    94.7%
                                 | |
| 5 | 1 | 
                                    
                                    0.7%
                                 | |
| 10 | 1 | 
                                    
                                    0.7%
                                 | |
| 20 | 1 | 
                                    
                                    0.7%
                                 | |
| 25 | 1 | 
                                    
                                    0.7%
                                 | |
| 60 | 1 | 
                                    
                                    0.7%
                                 | |
| 75 | 1 | 
                                    
                                    0.7%
                                 | |
| 80 | 1 | 
                                    
                                    0.7%
                                 | |
| 93 | 1 | 
                                    
                                    0.7%
                                 |