| Value | Category | 
                                    
                    
                        | 1 | Private dwelling / house | 
                                    
                    
                        | 2 | Military establishment | 
                                    
                    
                        | 3 | Hospital | 
                                    
                    
                        | 4 | Nursing home | 
                                    
                    
                        | 5 | Other institution | 
                                    
                    
                        | 6 | DK | 
                                    
                    
                        | Sysmiss |  | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.