| Value | Category | Cases | |
|---|---|---|---|
| 0 | 764 | 
                                    
                                    93.9%
                                 | |
| 1 | 30 | 
                                    
                                    3.7%
                                 | |
| 2 | 10 | 
                                    
                                    1.2%
                                 | |
| 3 | 10 | 
                                    
                                    1.2%
                                 | |
| Sysmiss | 1153 |