condition mean min max 0 h after light 0.906765 0.76438 1.04915 4 h after light 1.33539 1.16619 1.50459 8 h after light 1.6608695 0.679619 2.64212 4 h after dark 0.891926 0.749382 1.03447 8 h after dark 1.5594264999999998 0.845413 2.27344 12 h after dark 0.847907 0.838571 0.857243