| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 140 | 
                                    
                                    95.9%
                                 | 
| 2 | no | 5 | 
                                    
                                    3.4%
                                 | 
| 8 | dk | 1 | 
                                    
                                    0.7%
                                 | 
| Sysmiss | 15205 |