| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1093 | 
                                    
                                    80.5%
                                 | 
| 1 | Yes | 263 | 
                                    
                                    19.4%
                                 | 
| 8 | Don't know | 1 | 
                                    
                                    0.1%
                                 |