DISTRIBUTION IN TH U.S.
                
                                            
                                                            Arizona
                                                                    ,
                                                                                            California
                                                                    ,
                                                                                            Colorado
                                                                    ,
                                                                                            Iowa
                                                                    ,
                                                                                            Idaho
                                                                    ,
                                                                                            Illinois
                                                                    ,
                                                                                            Indiana
                                                                    ,
                                                                                            Kansas
                                                                    ,
                                                                                            Michigan
                                                                    ,
                                                                                            Minnesota
                                                                    ,
                                                                                            Montana
                                                                    ,
                                                                                            North Dakota
                                                                    ,
                                                                                            Nebraska
                                                                    ,
                                                                                            New Mexico
                                                                    ,
                                                                                            Nevada
                                                                    ,
                                                                                            New York
                                                                    ,
                                                                                            Oklahoma
                                                                    ,
                                                                                            Oregon
                                                                    ,
                                                                                            Rhode Island
                                                                    ,
                                                                                            South Dakota
                                                                    ,
                                                                                            Texas
                                                                    ,
                                                                                            Utah
                                                                    ,
                                                                                            Washington
                                                                    ,
                                                                                            Wisconsin
                                                                    ,
                                                                                            Wyoming