| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6 | 
                                    
                                    0.5%
                                 | |
| 2 | 20 | 
                                    
                                    1.8%
                                 | |
| 3 | 28 | 
                                    
                                    2.5%
                                 | |
| 4 | 286 | 
                                    
                                    25.7%
                                 | |
| 5 | 775 | 
                                    
                                    69.5%
                                 | |
| Sysmiss | 351 |