| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 82 | 
                                    
                                    5.8%
                                 | 
| -6 | Still in process | 0 | 
                                    
                                    0%
                                 | 
| 1 | Yes | 578 | 
                                    
                                    40.8%
                                 | 
| 2 | No | 756 | 
                                    
                                    53.4%
                                 |