| Value | Category | Cases | |
|---|---|---|---|
| 0 | 179 | 
                                    
                                    47.2%
                                 | |
| 1 | 171 | 
                                    
                                    45.1%
                                 | |
| 2 | 21 | 
                                    
                                    5.5%
                                 | |
| 3 | 8 | 
                                    
                                    2.1%
                                 | |
| Sysmiss | 5021 |