| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1149 | 
                                    
                                    56.4%
                                 | 
| 2 | no | 847 | 
                                    
                                    41.5%
                                 | 
| 8 | dk | 43 | 
                                    
                                    2.1%
                                 | 
| Sysmiss | 13312 |