condition mean min max 4 h after light 58.835122 51.35136 66.318884 8 h after light 67.186684 53.595043 80.778325 12 h after light 89.3987245 62.69151 116.105939 4 h after dark 180.171501 89.078301 271.264701 8 h after dark 146.97609699999998 87.924485 206.027709 12 h after dark 99.024759 99.024759 99.024759