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 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.06994399999999999 0.0 0.209832 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0