condition mean min max 4 h after light 62.8926 61.647 64.1382 8 h after light 193.894 177.886 209.902 12 h after light 243.78750000000002 235.348 252.227 4 h after dark 147.44299999999998 141.882 153.004 8 h after dark 131.05700000000002 127.168 134.946 12 h after dark 108.04585 93.5807 122.511