condition mean min max 4 h after light 5.11841 5.03175 5.25787 8 h after light 5.1431933333333335 5.05211 5.22307 12 h after light 5.320846666666667 5.07071 5.60715 4 h after dark 5.24801 5.15335 5.37536 8 h after dark 5.1063600000000005 4.84768 5.35821 12 h after dark 5.2723700000000004 5.15747 5.4968