condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02781935 0.0 0.0556387 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.04659633333333333 0.0 0.139789