| Value | Category | 
                                    
                    
                        | 0 | 0 ppm (no iodine) | 
                                    
                    
                        | 7 | 7 ppm | 
                                    
                    
                        | 15 | 15 ppm | 
                                    
                    
                        | 30 | 30 ppm | 
                                    
                    
                        | 994 | Salt not tested | 
                                    
                    
                        | 995 | No salt | 
                                    
                    
                        | 997 | Not dejure resident | 
                            
            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.