| Value | Category | Cases | |
|---|---|---|---|
| -1 | 1 | 
                                    
                                    0.9%
                                 | |
| 1 | 35 | 
                                    
                                    30.7%
                                 | |
| 5 | 12 | 
                                    
                                    10.5%
                                 | |
| 6 | 64 | 
                                    
                                    56.1%
                                 | |
| 7 | 1 | 
                                    
                                    0.9%
                                 | |
| 13 | 1 | 
                                    
                                    0.9%
                                 | |
| Sysmiss | 935 |