condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0899145 0.0 0.203677 9 h after light 0.0 0.0 0.0 12 h after light 0.030560725 0.0 0.0622841 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.089348 0.0 0.178696