| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1253 | 
                                    
                                    93%
                                 | |
| 1 | 4 | 
                                    
                                    0.3%
                                 | |
| 2 | 25 | 
                                    
                                    1.9%
                                 | |
| 3 | 65 | 
                                    
                                    4.8%
                                 | |
| Sysmiss | 8128 |