| Value | Category | Cases | |
|---|---|---|---|
| 0 | 230 | 
                                    
                                    54.8%
                                 | |
| 1 | 154 | 
                                    
                                    36.7%
                                 | |
| 2 | 10 | 
                                    
                                    2.4%
                                 | |
| 3 | 26 | 
                                    
                                    6.2%
                                 | |
| Sysmiss | 19337 |