| Value | Category | Cases | |
|---|---|---|---|
| 0 | 647 | 
                                    
                                    85.6%
                                 | |
| 1 | 34 | 
                                    
                                    4.5%
                                 | |
| 2 | 37 | 
                                    
                                    4.9%
                                 | |
| 3 | 14 | 
                                    
                                    1.9%
                                 | |
| 4 | 11 | 
                                    
                                    1.5%
                                 | |
| 5 | 4 | 
                                    
                                    0.5%
                                 | |
| 6 | 9 | 
                                    
                                    1.2%
                                 | |
| Sysmiss | 202 |