| Value | Category | Cases | |
|---|---|---|---|
| 0 | 500 | 
                                    
                                    85.9%
                                 | |
| 1 | 52 | 
                                    
                                    8.9%
                                 | |
| 2 | 15 | 
                                    
                                    2.6%
                                 | |
| 3 | 9 | 
                                    
                                    1.5%
                                 | |
| 4 | 2 | 
                                    
                                    0.3%
                                 | |
| 5 | 1 | 
                                    
                                    0.2%
                                 | |
| 6 | 2 | 
                                    
                                    0.3%
                                 | |
| 10 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 537 |