condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.353678 0.0 0.707356 8 h after light 0.0 0.0 0.0 12 h after light 1.052715 0.0 2.10543 2 h after dark 0.0 0.0 0.0 4 h after dark 0.3469915 0.0 0.693983 8 h after dark 0.0 0.0 0.0 12 h after dark 1.07226 0.0 2.14452