condition mean min max 3 h after light 31.1947 18.66 38.5139 6 h after light 67.1531 60.7815 73.7163 9 h after light 76.4197 71.2981 85.4885 12 h after light 71.78176666666667 60.8635 82.9816 3 h after dark 52.2949 45.685 64.3149 6 h after dark 31.828566666666667 29.5162 36.0871 9 h after dark 21.136166666666668 14.842 26.1442 12 h after dark 11.64733 8.64259 14.2127