| Value | Category | Cases | |
|---|---|---|---|
| 0 | 60 | 
                                    
                                    7.8%
                                 | |
| 1 | 599 | 
                                    
                                    77.4%
                                 | |
| 2 | 23 | 
                                    
                                    3%
                                 | |
| 3 | 65 | 
                                    
                                    8.4%
                                 | |
| 4 | 7 | 
                                    
                                    0.9%
                                 | |
| 5 | 7 | 
                                    
                                    0.9%
                                 | |
| 6 | 12 | 
                                    
                                    1.6%
                                 | |
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 2419 |