| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1479 | 
                                    
                                    20%
                                 | 
| 2 | no | 5916 | 
                                    
                                    79.9%
                                 | 
| 3 | 2 | 
                                    
                                    0%
                                 | |
| 6 | 2 | 
                                    
                                    0%
                                 | |
| 8 | 1 | 
                                    
                                    0%
                                 | |
| Sysmiss | 125 |