| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 7 | 
                                    
                                    0.5%
                                 | 
| 3 | No | 595 | 
                                    
                                    44.7%
                                 | 
| 9 | N/A | 728 | 
                                    
                                    54.7%
                                 | 
| Sysmiss | 7762 |