| Value | Category | 
                                    
                    
                        | 1 | Owned | 
                                    
                    
                        | 2 | Being purchased | 
                                    
                    
                        | 3 | Employer provides | 
                                    
                    
                        | 4 | Free, authorised | 
                                    
                    
                        | 5 | Free, not authorised | 
                                    
                    
                        | 6 | Rented | 
                            
            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.