| Value | Category | Cases | |
|---|---|---|---|
| 0 | 214 | 
                                    
                                    27.6%
                                 | |
| 1 | 157 | 
                                    
                                    20.3%
                                 | |
| 2 | 204 | 
                                    
                                    26.3%
                                 | |
| 3 | 110 | 
                                    
                                    14.2%
                                 | |
| 4 | 60 | 
                                    
                                    7.7%
                                 | |
| 5 | 19 | 
                                    
                                    2.5%
                                 | |
| 6 | 8 | 
                                    
                                    1%
                                 | |
| 7 | 3 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 766 |