| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 100 | 
                                    
                                    1.2%
                                 | 
| 1 | yes | 8137 | 
                                    
                                    98.8%
                                 | 
| 8 | dk | 0 | 
                                    
                                    0%
                                 | 
| 9 | 2 | 
                                    
                                    0%
                                 |