condition mean min max 3 h after light 4.56728 3.07218 5.7085 6 h after light 25.2012 22.7971 29.9648 9 h after light 41.9609 41.6104 42.252 12 h after light 38.5788 34.209 45.5992 3 h after dark 26.8774 25.5037 29.0438 6 h after dark 21.702566666666666 19.0936 23.4637 9 h after dark 10.31597 9.58459 11.4965 12 h after dark 1.355906 0.622774 2.80801