condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.09686116666666666 0.0 0.581167 10 h after light 0.0962795 0.0 0.577677 14 h after light 0.11969116666666667 0.0 0.718147 18 h after light 0.09359516666666667 0.0 0.561571 2 h after dark 0.0966985 0.0 0.580191