condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.04723815 0.0 0.097828 3 h after dark 0.081082 0.0 0.138676 6 h after dark 0.027001933333333335 0.0 0.0810058 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0