condition mean min max 4 h after light 5.04195 3.11584 6.96806 8 h after light 3.912795 3.87983 3.94576 12 h after light 8.359449999999999 6.89987 9.81903 4 h after dark 13.322166666666666 12.8931 13.7008 8 h after dark 13.0857 10.769 14.7213 12 h after dark 6.950873333333333 6.30053 7.54971