condition mean min max 4 h after light 3.62849 3.03982 4.21716 8 h after light 4.630655 3.49075 5.77056 12 h after light 2.7915900000000002 2.31881 3.26437 4 h after dark 2.5904800000000003 2.58794 2.59302 8 h after dark 4.084875 3.75726 4.41249 12 h after dark 5.377945 4.89501 5.86088