condition mean min max 4 h after light 4.49638 2.91122 7.42585 8 h after light 2.60163 1.92044 3.77759 12 h after light 4.978116666666667 2.72811 6.28463 4 h after dark 7.249090000000001 5.56299 8.76598 8 h after dark 7.219943333333333 6.92547 7.7266 12 h after dark 4.131983333333333 2.61654 5.32342