condition mean min max 4 h after light 11316.026666666667 9393.98 13703.5 8 h after light 14604.793333333333 5718.18 20010.5 12 h after light 16184.933333333332 12542.8 18061.9 4 h after dark 25167.9 22048.2 28932.2 8 h after dark 23362.0 22277.2 24505.0 12 h after dark 13935.869999999999 7769.61 19425.0