| Value | Category | Cases | |
|---|---|---|---|
| 0 | less than 1 year | 838 | 
                            
                             
                                
                                2.7%
                                                             
                            
                         | 
                        
                    
| 1 | 202 | 
                            
                             
                                
                                0.7%
                                                             
                            
                         | 
                        
                    |
| 2 | 77 | 
                            
                             
                                
                                0.3%
                                                             
                            
                         | 
                        
                    |
| 4 | 66 | 
                            
                             
                                
                                0.2%
                                                             
                            
                         | 
                        
                    |
| 5 | 10 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 6 | 18 | 
                            
                             
                                
                                0.1%
                                                             
                            
                         | 
                        
                    |
| 8 | 15 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 9 | 6 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 10 | 6 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 12 | 12 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 13 | 6 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 14 | 6 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 16 | 10 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 17 | 10 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 18 | 9 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 20 | 12 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 21 | 7 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 22 | 4 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 24 | 8 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 25 | 2 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 26 | 2 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 28 | 3 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 29 | 1 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 34 | 1 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    |
| 991 | since birth | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 993 | rest of life | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 994 | no duration given | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 996 | other | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 997 | refused | 1 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 998 | don't know | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 999 | NIU (not in universe) | 29125 | 
                            
                             
                                
                                95.1%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 160 | 
                            
                             
                                
                                0.5%
                                                             
                            
                         |