condition mean min max 0 h after light 0.519606 0.425324 0.613888 4 h after light 0.438643 0.288851 0.588435 8 h after light 0.7063415000000001 0.47566 0.937023 4 h after dark 0.7035465000000001 0.329123 1.07797 8 h after dark 0.4920725 0.424335 0.55981 12 h after dark 0.49198949999999997 0.352629 0.63135