| Value | Category | Cases | |
|---|---|---|---|
| 0 | 129 | 
                                    
                                    46.6%
                                 | |
| 1 | 138 | 
                                    
                                    49.8%
                                 | |
| 2 | 5 | 
                                    
                                    1.8%
                                 | |
| 3 | 5 | 
                                    
                                    1.8%
                                 | |
| Sysmiss | 19480 |