| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18 | 
                                    
                                    1.6%
                                 | |
| 2 | 42 | 
                                    
                                    3.7%
                                 | |
| 3 | 67 | 
                                    
                                    5.9%
                                 | |
| 4 | 431 | 
                                    
                                    38.1%
                                 | |
| 5 | 573 | 
                                    
                                    50.7%
                                 | |
| Sysmiss | 335 |