condition mean min max 3 h after light 21.909133333333333 18.8793 24.7163 6 h after light 15.7332 10.8899 19.4997 9 h after light 14.8294 11.2652 18.4402 12 h after light 19.7436 15.5617 23.8863 3 h after dark 18.809366666666666 16.8904 21.6691 6 h after dark 17.3536 15.6967 19.5771 9 h after dark 14.553033333333333 12.3157 16.6362 12 h after dark 15.7065 15.2412 16.1718