condition mean min max 4 h after light 4.89896 3.86584 6.5024 8 h after light 3.677033333333333 1.07447 5.93887 12 h after light 4.46246 3.33246 5.74677 4 h after dark 11.79612 8.38076 15.2179 8 h after dark 10.69036 7.55518 13.595 12 h after dark 9.107803333333333 6.70825 11.7043