condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0453322 0.0277883 0.079652 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.05569006666666666 0.0295904 0.0954772 12 h after dark 0.01252695 0.0 0.0250539