| Value | 
                    Category | 
                                                                            
                                    
                    
                        | 100 | 
                        Zero hours  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 101 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 102 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 103 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 104 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 105 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 106 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 107 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 108 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 110 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 112 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 115 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 118 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 130 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 201 | 
                        One day  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 202 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 203 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 301 | 
                        One week  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 998 | 
                        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.