condition mean min max 4 h after light 0.26441313 6.26e-06 0.52882 8 h after light 0.6587725 0.381499 0.936046 12 h after light 0.63301 0.0 1.26602 4 h after dark 0.30096924999999997 0.00786575 0.556742 8 h after dark 0.66493462 1.86e-06 1.43165 12 h after dark 1.635065 0.403338 3.57135