| Value | Category | Cases | |
|---|---|---|---|
| 1 | 591 | 
                                    
                                    61.4%
                                 | |
| 6 | 230 | 
                                    
                                    23.9%
                                 | |
| 9 | 142 | 
                                    
                                    14.7%
                                 | |
| Sysmiss | 1 |