| Value | Category | Cases | |
|---|---|---|---|
| 1 | 13 | 
                                    
                                    1.1%
                                 | |
| 2 | 20 | 
                                    
                                    1.8%
                                 | |
| 3 | 51 | 
                                    
                                    4.5%
                                 | |
| 4 | 433 | 
                                    
                                    38.3%
                                 | |
| 5 | 614 | 
                                    
                                    54.3%
                                 | |
| Sysmiss | 335 |