| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| 0 | 151 | 
                                    
                                    96.2%
                                 | |
| 2 | 1 | 
                                    
                                    0.6%
                                 | |
| 5 | 1 | 
                                    
                                    0.6%
                                 | |
| 8 | 1 | 
                                    
                                    0.6%
                                 | |
| 10 | 1 | 
                                    
                                    0.6%
                                 | |
| 90 | 1 | 
                                    
                                    0.6%
                                 | |
| 100 | 1 | 
                                    
                                    0.6%
                                 |