condition mean min max 4 h after light 0.888617 0.826681 0.950553 8 h after light 0.3009345 0.0 0.601869 12 h after light 0.1950175 0.0 0.390035 4 h after dark 0.553345 0.0 1.04054 8 h after dark 0.4284793333333333 0.0 0.734972 12 h after dark 4.754633 0.756079 11.4554