condition mean min max 4 h after light 1.92232 1.05728 2.78736 8 h after light 1.7163795 0.839709 2.59305 12 h after light 1.1951295000000002 0.367449 2.02281 4 h after dark 3.054936666666667 1.60983 4.81873 8 h after dark 2.2443674 0.0121722 3.91619 12 h after dark 2.668163333333333 1.82493 3.67514