| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 | 
                                    
                                    0.8%
                                 | |
| 1 | 71 | 
                                    
                                    14.8%
                                 | |
| 2 | 100 | 
                                    
                                    20.8%
                                 | |
| 3 | 164 | 
                                    
                                    34.1%
                                 | |
| 4 | 117 | 
                                    
                                    24.3%
                                 | |
| 5 | 25 | 
                                    
                                    5.2%
                                 | |
| Sysmiss | 215 |