condition mean min max 0 h after light 16.394550000000002 16.331 16.4581 4 h after light 20.226 19.5297 20.9223 8 h after light 19.575400000000002 19.5108 19.64 4 h after dark 24.40165 20.9373 27.866 8 h after dark 23.5092 21.7664 25.252 12 h after dark 15.1421 13.184 17.1002