condition mean min max 0 h after light 16.11225 15.8658 16.3587 4 h after light 33.29945 28.1944 38.4045 8 h after light 24.69085 24.6137 24.768 4 h after dark 15.6938 15.5091 15.8785 8 h after dark 54.7365 51.3987 58.0743 12 h after dark 15.26225 14.3384 16.1861