| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | No | 20 | 556 | 
                                                                 
                                    
                                    14.3%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 1 | Can read & write | 106 | 3322 | 
                                                                 
                                    
                                    85.7%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 99 | Not stated | 0 | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 25609 | 842695 |