| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4209 | 
                                    
                                    90.9%
                                 | |
| 1 | 186 | 
                                    
                                    4%
                                 | |
| 2 | 169 | 
                                    
                                    3.7%
                                 | |
| 3 | 64 | 
                                    
                                    1.4%
                                 | |
| Sysmiss | 2206 |