| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18 | 
                                    
                                    1.6%
                                 | |
| 2 | 21 | 
                                    
                                    1.9%
                                 | |
| 3 | 116 | 
                                    
                                    10.3%
                                 | |
| 4 | 407 | 
                                    
                                    36%
                                 | |
| 5 | 569 | 
                                    
                                    50.3%
                                 | |
| Sysmiss | 335 |