| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 | 
                                    
                                    8.5%
                                 | |
| 1 | 28 | 
                                    
                                    59.6%
                                 | |
| 2 | 12 | 
                                    
                                    25.5%
                                 | |
| 5 | 2 | 
                                    
                                    4.3%
                                 | |
| 10 | 1 | 
                                    
                                    2.1%
                                 | |
| Sysmiss | 1453 |