condition mean min max 2 h after light 21.111233333333335 17.6733 24.2736 6 h after light 14.7556 10.4921 17.6467 10 h after light 13.304985 7.19955 20.3899 14 h after light 15.055 10.4191 20.6394 18 h after light 14.78635 10.5546 19.7595 2 h after dark 13.362316666666667 8.6929 16.6278