condition mean min max 3 h after light 18.8846 16.8268 20.8729 6 h after light 15.605143333333332 9.47973 21.9638 9 h after light 24.499333333333333 17.663 33.8881 12 h after light 37.0209 26.8166 49.747 3 h after dark 30.5636 26.9742 37.1101 6 h after dark 19.6633 17.8221 20.6333 9 h after dark 17.615033333333333 13.9435 22.1206 12 h after dark 25.2998 21.9354 28.6642