| Value | Category | Cases | |
|---|---|---|---|
| 0 | 967 | 
                                    
                                    52.4%
                                 | |
| 1 | 216 | 
                                    
                                    11.7%
                                 | |
| 2 | 486 | 
                                    
                                    26.3%
                                 | |
| 3 | 178 | 
                                    
                                    9.6%
                                 | |
| Sysmiss | 7628 |