condition mean min max 4 h after light 2.850364 2.811042 2.920804 8 h after light 2.1229916666666666 1.482157 2.569513 12 h after light 1.4261493333333333 1.352492 1.537995 16 h after light 2.86078 2.42849 3.415751 4 h after dark 3.232208 2.204555 4.798877 8 h after dark 1.8374573333333335 1.488104 2.4420830000000002