values    2      3       4       5       6       7
        122.35  122.517 122.455 122.488 122.483 122.533  low limit
122.45
        122.5
122.55          122.567
                        122.605
122.67                          122.638
                                        122.633
122.75                                          122.683

122.77

122.79

122.80
        122.65  122.817 122.755 122.788 122.783 122.833   high limit