condition mean min max 3 h after light 0.0264549 0.0 0.0793647 6 h after light 0.017488 0.0 0.052464 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 0.0184886 0.0 0.0554658 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0