| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes,with certificate | 3121 | 
                                    
                                    34.1%
                                 | 
| 2 | Yes without certificate | 1634 | 
                                    
                                    17.9%
                                 | 
| 3 | No | 517 | 
                                    
                                    5.7%
                                 | 
| 4 | 3875 | 
                                    
                                    42.4%
                                 | |
| 9 | Missing | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 72631 |