condition mean min max 0 h after light 4.848485 4.6698 5.02717 2 h after light 0.0 0.0 0.0 4 h after light 4.577485 0.0 9.15497 8 h after light 2.411335 0.0 4.82267 12 h after light 2.34507 0.0 4.69014 2 h after dark 0.0 0.0 0.0 4 h after dark 2.244145 0.0 4.48829 8 h after dark 5.06525 0.0 10.1305 12 h after dark 0.0 0.0 0.0