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 0.0 0.0 0.0 8 h after light 0.01271745 0.0 0.0254349 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0118357 0.0 0.0236714 8 h after dark 0.04105875 0.0267143 0.0554032 12 h after dark 0.0 0.0 0.0