| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 1427 | 
                                    
                                    51.9%
                                 | 
| 1 | yes | 1311 | 
                                    
                                    47.7%
                                 | 
| 8 | don't know | 13 | 
                                    
                                    0.5%
                                 | 
| Sysmiss | 12195 |