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 1.46746 0.0 2.93492 8 h after light 1.485865 0.0 2.97173 12 h after light 3.09912 2.90107 3.29717 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 1.624445 0.0 3.24889 12 h after dark 0.0 0.0 0.0