| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 | 
                                    
                                    0.6%
                                 | |
| 2 | 30 | 
                                    
                                    1.5%
                                 | |
| 3 | 38 | 
                                    
                                    2%
                                 | |
| 4 | 160 | 
                                    
                                    8.2%
                                 | |
| 5 | 63 | 
                                    
                                    3.2%
                                 | |
| 6 | 309 | 
                                    
                                    15.9%
                                 | |
| 7 | 69 | 
                                    
                                    3.6%
                                 | |
| 8 | 1262 | 
                                    
                                    65%
                                 | |
| Sysmiss | 24 |