condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.08351866666666667 0.0 0.334264 10 h after light 0.0896815 0.0 0.380228 14 h after light 0.0159757 0.0 0.0958542 18 h after light 0.014861383333333334 0.0 0.0891683 2 h after dark 0.015354166666666667 0.0 0.092125