condition mean min max 0 h after light 2.3349 0.0 4.6698 2 h after light 2.62141 0.0 5.24282 4 h after light 2.28874 0.0 4.57748 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 2.244145 0.0 4.48829 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0