| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 41 | 
                                    
                                    2.1%
                                 | 
| 1 | yes | 1939 | 
                                    
                                    97.6%
                                 | 
| 9 | 6 | 
                                    
                                    0.3%
                                 | |
| 11 | .Z | 6253 |