condition mean min max 4 h after light 2697.1664655 1862.732057 3531.600874 8 h after light 2580.7950495 2083.738146 3077.851953 12 h after light 1173.8814615000001 1112.385753 1235.37717 4 h after dark 301.377703 14.668246 588.08716 8 h after dark 76.00119699999999 11.391888 140.610506 12 h after dark 1794.296122 1794.296122 1794.296122