condition mean min max 0 h after light 1.6167099999999999 1.39965 1.83377 4 h after light 1.8626399999999999 1.67885 2.04643 8 h after light 2.1769 1.59825 2.75555 4 h after dark 3.00793 2.83014 3.18572 8 h after dark 2.4391499999999997 2.29825 2.58005 12 h after dark 2.240265 2.04932 2.43121