| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 2628 | 
                                                                 
                                    
                                    18.1%
                                 
                                                             | 
                                                        
                    
| 2 | No | 11616 | 
                                                                 
                                    
                                    79.8%
                                 
                                                             | 
                                                        
                    
| 99 | Do not know | 309 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 620597 |