| Value | Category | Cases | |
|---|---|---|---|
| 0 | 16 | 
                                    
                                    1.5%
                                 | |
| 1 | 280 | 
                                    
                                    26.8%
                                 | |
| 2 | 304 | 
                                    
                                    29.1%
                                 | |
| 3 | 223 | 
                                    
                                    21.3%
                                 | |
| 4 | 112 | 
                                    
                                    10.7%
                                 | |
| 5 | 53 | 
                                    
                                    5.1%
                                 | |
| 6 | 31 | 
                                    
                                    3%
                                 | |
| 7 | 17 | 
                                    
                                    1.6%
                                 | |
| 8 | 6 | 
                                    
                                    0.6%
                                 | |
| 9 | 3 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 4 |