| Value | Category | Cases | |
|---|---|---|---|
| 0 | 113 | 
                                    
                                    1.6%
                                 | |
| 1 | 32 | 
                                    
                                    0.5%
                                 | |
| 2 | 68 | 
                                    
                                    1%
                                 | |
| 3 | 90 | 
                                    
                                    1.3%
                                 | |
| 4 | 180 | 
                                    
                                    2.6%
                                 | |
| 5 | 307 | 
                                    
                                    4.4%
                                 | |
| 6 | 626 | 
                                    
                                    8.9%
                                 | |
| 7 | 5593 | 
                                    
                                    79.8%
                                 | |
| Sysmiss | 1 |