| Value | Category | 
                                    
                    
                        | 1 | local executive and regulatory authorities | 
                                    
                    
                        | 2 | Cooperative | 
                                    
                    
                        | 3 | Enterprise | 
                                    
                    
                        | 4 | Private | 
                                    
                    
                        | 9 | Doesn't know, refuses to answer | 
                                    
                    
                        | 0 | Not in Universe | 
                            
            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.