condition mean min max 0 h after light 0.219368 0.0 0.438736 4 h after light 1.96827 1.34112 2.59542 8 h after light 0.4466065 0.0 0.893213 4 h after dark 0.2162985 0.0 0.432597 8 h after dark 0.433921 0.4321 0.435742 12 h after dark 0.0 0.0 0.0