condition mean min max 0 h after light 3.027355 2.89674 3.15797 4 h after light 1.33061 1.14306 1.51816 8 h after light 2.563705 2.52808 2.59933 4 h after dark 3.520425 2.87903 4.16182 8 h after dark 3.1316249999999997 3.00622 3.25703 12 h after dark 2.9534000000000002 2.74629 3.16051