| Value | 
                    Category | 
                                                                            
                                    
                    
                        | 1 | 
                        State  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 2 | 
                        State and private  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 3 | 
                        Private  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 4 | 
                        Did not use  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9999998 | 
                        REFUSAL  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9999999 | 
                        DONTKNOW  | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.