condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0615485 0.0 0.246194 3 h after dark 0.20356633333333332 0.0 0.610699 6 h after dark 0.0 0.0 0.0 9 h after dark 0.14954333333333333 0.0 0.44863 12 h after dark 0.0 0.0 0.0