| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 986 | 
                                    
                                    72.4%
                                 | 
| 1 | Yes | 339 | 
                                    
                                    24.9%
                                 | 
| 8 | Don't know | 37 | 
                                    
                                    2.7%
                                 |