| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 17797 | 
                                    
                                    83.6%
                                 | 
| 2 | No | 3488 | 
                                    
                                    16.4%
                                 | 
| 3 | 1 | 
                                    
                                    0%
                                 | |
| 5 | 1 | 
                                    
                                    0%
                                 | |
| Sysmiss | 1813 |