| Value | Category | Cases | |
|---|---|---|---|
| 0 | 57 | 
                                    
                                    9.3%
                                 | |
| 1 | 474 | 
                                    
                                    77.7%
                                 | |
| 2 | 42 | 
                                    
                                    6.9%
                                 | |
| 3 | 21 | 
                                    
                                    3.4%
                                 | |
| 4 | 4 | 
                                    
                                    0.7%
                                 | |
| 5 | 6 | 
                                    
                                    1%
                                 | |
| 6 | 1 | 
                                    
                                    0.2%
                                 | |
| 7 | 2 | 
                                    
                                    0.3%
                                 | |
| 8 | 1 | 
                                    
                                    0.2%
                                 | |
| 10 | 2 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 3 |